Browser support for JavaScript APIs

alarms

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
Alarm	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
clear	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
clearAll	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
create	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
get	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
getAll	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
onAlarm	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48

Legend

Full support  

Full support

No support  

No support

bookmarks

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
BookmarkTreeNode	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
BookmarkTreeNode.type	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
BookmarkTreeNodeType	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
BookmarkTreeNodeUnmodifiable	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
CreateDetails	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
CreateDetails.type	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
create	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
get	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getChildren	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getRecent	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android No support No
getSubTree	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getTree	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
move	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
onChanged	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
onChildrenReordered	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onCreated	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
onImportBegan	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onImportEnded	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onMoved	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
onRemoved	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
remove	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
removeTree	Chrome Full support Yes	Edge Full support 15	Firefox Full support 47	Opera Full support Yes	Firefox Android No support No
search	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android No support No
update	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

browserAction

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ColorArray	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
ImageDataType	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
disable	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
enable	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getBadgeBackgroundColor	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getBadgeText	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getBadgeTextColor	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android No support No
getPopup	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 57
getTitle	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 55
isEnabled	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
onClicked	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 55
openPopup	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
setBadgeBackgroundColor	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Full support 45 No support 45 — 58 Notes Notes Tab-specific badge background color is not cleared when a new page is loaded.	Opera Full support Yes	Firefox Android No support No
setBadgeBackgroundColor: The color property of the details parameter can be set to a string.	Chrome Full support Yes	Edge No support No	Firefox Full support Yes Notes Full support Yes Notes Notes Before Firefox 59, invalid color strings behaved as null.	Opera ?	Firefox Android No support No
setBadgeBackgroundColor: The color property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setBadgeText	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Full support 45 No support 45 — 58 Notes Notes Tab-specific badge text is not cleared when a new page is loaded.	Opera Full support Yes	Firefox Android No support No
setBadgeText: The text property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setBadgeTextColor	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android No support No
setIcon	Chrome Full support Yes Notes Full support Yes Notes Notes Before Chrome 23, `path` couldn't specify multiple icon files, but had to be a string specifying a single icon path.	Edge Full support 14 Notes Full support 14 Notes Notes This call is not persisted. Notes The imageData parameter is not accepted. Notes The path parameter is required.	Firefox Full support 45 Full support 45 No support 45 — 58 Notes Notes Tab-specific icons are not cleared when a new page is loaded.	Opera Full support 15	Firefox Android No support No
setIcon.imageData	Chrome Full support 23	Edge No support No	Firefox Full support 45	Opera Full support 15	Firefox Android No support No
setIcon: The path and imageData properties of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setPopup	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Full support 45 No support 45 — 58 Notes Notes Tab-specific popups are not cleared when a new page is loaded.	Opera Full support Yes	Firefox Android Full support 57 Full support 57 No support 57 — 58 Notes Notes Tab-specific popups are not cleared when a new page is loaded.
setPopup: The popup property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setTitle	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45 Full support 45 No support 45 — 58 Notes Notes Tab-specific titles are not cleared when a new page is loaded.	Opera Full support Yes	Firefox Android Full support 55 Full support 55 No support 55 — 58 Notes Notes Tab-specific titles are not cleared when a new page is loaded.
setTitle: The title property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

Compatibility unknown  

Compatibility unknown

See implementation notes.

See implementation notes.

browserSettings

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
allowPopupsForUserEvents	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
cacheEnabled	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android Full support 56
closeTabsByDoubleClick	Chrome No support No	Edge No support No	Firefox Full support 61	Opera No support No	Firefox Android No support No
contextMenuShowEvent	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
homepageOverride	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
imageAnimationBehavior	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
newTabPageOverride	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
newTabPosition	Chrome No support No	Edge No support No	Firefox Full support 61	Opera No support No	Firefox Android Full support 61 Notes Full support 61 Notes Notes This setting can be changed but has no effect.
openBookmarksInNewTabs	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
openSearchResultsInNewTabs	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
openUrlbarResultsInNewTabs	Chrome No support No	Edge No support No	Firefox Full support 61	Opera No support No	Firefox Android Full support 61
overrideDocumentColors	Chrome No support No	Edge No support No	Firefox Full support 61	Opera No support No	Firefox Android Full support 61
useDocumentFonts	Chrome No support No	Edge No support No	Firefox Full support 61	Opera No support No	Firefox Android Full support 61
webNotificationsDisabled	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android Full support 58

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

browsingData

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
DataTypeSet.cache	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 56
DataTypeSet.cookies	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 56
DataTypeSet.downloads	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 56
DataTypeSet.fileSystems	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
DataTypeSet.formData	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 56
DataTypeSet.history	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 56
DataTypeSet.indexedDB	Chrome Full support Yes	Edge No support No	Firefox Full support 57	Opera Full support Yes	Firefox Android No support No
DataTypeSet.localStorage	Chrome Full support Yes	Edge No support No	Firefox Full support 57	Opera Full support Yes	Firefox Android No support No
DataTypeSet.passwords	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android No support No
DataTypeSet.pluginData	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android No support No
DataTypeSet.serverBoundCertificates	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
DataTypeSet.serviceWorkers	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android No support No
RemovalOptions.hostnames	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android No support No
RemovalOptions.originTypes	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
RemovalOptions.since	Chrome Full support Yes	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes since is not supported with the following data types: cache, indexedDB, localStorage, and serviceWorkers.	Opera Full support Yes	Firefox Android Full support 56 Notes Full support 56 Notes Notes since is not supported with the following data types: cache, indexedDB, localStorage, and serviceWorkers.
remove	Chrome Full support Yes	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes Specifying dataTypes.history will also remove download history and service workers.	Opera Full support Yes	Firefox Android Full support 57 Notes Full support 57 Notes Notes Specifying dataTypes.history will also remove download history and service workers.
removeCache	Chrome Full support Yes	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes removalOptions.since is not supported.	Opera Full support Yes	Firefox Android Full support 57 Notes Full support 57 Notes Notes removalOptions.since is not supported.
removeCookies	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 56
removeDownloads	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 57
removeFormData	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 57
removeHistory	Chrome Full support Yes	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes This function also removes download history and service workers.	Opera Full support Yes	Firefox Android No support No Notes No support No Notes Notes See bug 1363010. browser.history.remove(options, {history:true}) can be used instead.
removeLocalStorage	Chrome Full support Yes	Edge No support No	Firefox Full support 57 Notes Full support 57 Notes Notes removalOptions.since is not supported.	Opera Full support Yes	Firefox Android No support No Notes No support No Notes Notes The method is defined but returns a rejected promise.
removePasswords	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android No support No Notes No support No Notes Notes See bug 1363012.
removePluginData	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android No support No
settings	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android Full support 56

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

clipboard

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
setImageData	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57

Legend

Full support  

Full support

No support  

No support

commands

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
Command	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android No support No
getAll	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android No support No
onCommand	Chrome Full support Yes	Edge No support No	Firefox Full support 48 Notes Full support 48 Notes Notes Before version 63, the onCommand listener was not treated as a handler for a user action.	Opera Full support Yes	Firefox Android No support No
reset	Chrome No support No	Edge No support No	Firefox Full support 60	Opera No support No	Firefox Android No support No
update	Chrome No support No	Edge No support No	Firefox Full support 60	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

contentScripts

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
RegisteredContentScript	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
RegisteredContentScript.unregister	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
register	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59

Legend

Full support  

Full support

No support  

No support

contextualIdentities

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ContextualIdentity.cookieStoreId	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android Full support 53
ContextualIdentity.color	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android Full support 53
ContextualIdentity.colorCode	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
ContextualIdentity.icon	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android Full support 53
ContextualIdentity.iconUrl	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
ContextualIdentity.name	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android Full support 53
create	Chrome No support No	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled.	Opera No support No	Firefox Android Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled.
get	Chrome No support No	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled. Notes Before version 57, this method resolves its promise with null if the given identity was not found.	Opera No support No	Firefox Android Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled. Notes Before version 57, this method resolves its promise with null if the given identity was not found.
onCreated	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
onRemoved	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
onUpdated	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
query	Chrome No support No	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled.	Opera No support No	Firefox Android Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled.
remove	Chrome No support No	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled. Notes Before version 57, this method resolves its promise with null if the given identity was not found.	Opera No support No	Firefox Android Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled. Notes Before version 57, this method resolves its promise with null if the given identity was not found.
update	Chrome No support No	Edge No support No	Firefox Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled. Notes Before version 57, this method resolves its promise with null if the given identity was not found.	Opera No support No	Firefox Android Full support 53 Notes Full support 53 Notes Notes Before version 57, this method resolves its promise with false if the contextual identities feature is disabled. Notes Before version 57, this method resolves its promise with null if the given identity was not found.

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

cookies

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
Cookie	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
Cookie.firstPartyDomain	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
CookieStore	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
OnChangedCause	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
get	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Notes Full support 45 Notes Notes Provides access to cookies from private browsing mode and container tabs since version 52.	Opera Full support Yes	Firefox Android Full support 48
get.firstPartyDomain	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
getAll	Chrome Full support Yes	Edge Full support 14 Notes Full support 14 Notes Notes If no URL is provided, cookies are retrieved only for URLs in currently opened tabs. In Chrome, this gets all cookies on a user's machine.	Firefox Full support 45 Notes Full support 45 Notes Notes Before version 52, the 'tabIds' list was empty and only cookies from the default cookie store were returned. From version 52 onwards, this has been fixed and the result includes cookies from private browsing mode and container tabs.	Opera Full support Yes	Firefox Android Full support 48
getAll.firstPartyDomain	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
getAllCookieStores	Chrome Full support Yes	Edge Full support 14 Notes Full support 14 Notes Notes Always returns the same default cookie store with ID 0. All cookies belong to this store.	Firefox Full support 45 Notes Full support 45 Notes Notes Before version 52, only the default cookie store was visible. From version 52 onwards, the cookie stores for private browsing mode and container tabs are also readable.	Opera Full support Yes	Firefox Android Full support 48
onChanged	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
remove	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Notes Full support 45 Notes Notes Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed.	Opera Full support Yes	Firefox Android Full support 48 Notes Full support 48 Notes Notes Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed.
remove.firstPartyDomain	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
set	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Notes Full support 45 Notes Notes Before version 56, this function did not modify cookies in private browsing mode. From version 56 onwards this is fixed.	Opera Full support Yes	Firefox Android Full support 48 Notes Full support 48 Notes Notes Before version 56, this function did not modify cookies in private browsing mode. From version 56 onwards this is fixed.
set.firstPartyDomain	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

devtools

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
inspectedWindow.eval	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android No support No
inspectedWindow.reload	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android No support No
inspectedWindow.tabId	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android No support No
network.getHAR	Chrome Full support Yes	Edge No support No	Firefox Full support 60 Notes Full support 60 Notes Notes The returned HAR log will be empty unless the user has previously activated the browser's network panel at least once.	Opera Full support Yes	Firefox Android No support No
network.onNavigated	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android No support No
network.onRequestFinished	Chrome Full support Yes	Edge No support No	Firefox Full support 61 Full support 61 No support 60 — 61 Notes Notes This event will only start firing after the user has activated the browser's network panel at least once.	Opera Full support Yes	Firefox Android No support No
panels.create	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android No support No
panels.elements	Chrome Full support Yes	Edge No support No	Firefox Full support 56	Opera Full support Yes	Firefox Android No support No
panels.onThemeChanged	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android No support No
panels.themeName	Chrome Full support 54	Edge No support No	Firefox Full support 55	Opera Full support 41	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

dns

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
resolve	Chrome No support No	Edge No support No	Firefox Full support 60	Opera No support No	Firefox Android Full support 60

Legend

Full support  

Full support

No support  

No support

downloads

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
BooleanDelta	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DangerType	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DoubleDelta	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.byExtensionId	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.byExtensionName	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.bytesReceived	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.canResume	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.danger	Chrome Full support Yes	Edge No support No	Firefox No support No Notes No support No Notes Notes Always given as 'safe'.	Opera Full support Yes	Firefox Android No support No Notes No support No Notes Notes Always given as 'safe'.
DownloadItem.endTime	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
DownloadItem.error	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.estimatedEndTime	Chrome Full support Yes	Edge No support No	Firefox Full support 57	Opera Full support Yes	Firefox Android Full support 57
DownloadItem.exists	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.filename	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.fileSize	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.id	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.incognito	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.mime	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.paused	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.referrer	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.startTime	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.state	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.totalBytes	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadItem.url	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadQuery	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
DownloadTime	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
FilenameConflictAction	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
FilenameConflictAction.prompt	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
InterruptReason	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
State	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
StringDelta	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
acceptDanger	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
cancel	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
download	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
download.body	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android Full support 52
download.conflictAction	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
download.filename	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
download.headers	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
download.incognito	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57
download.method	Chrome Full support Yes	Edge No support No	Firefox Full support 47 Notes Full support 47 Notes Notes POST is supported from version 52.	Opera Full support Yes	Firefox Android Full support 48 Notes Full support 48 Notes Notes POST is supported from version 52.
download.saveAs	Chrome Full support Yes	Edge No support No	Firefox Full support 52 Notes Full support 52 Notes Notes Before version 58, if this option was omitted, Firefox would never show the file chooser, regardless of the value of the browser's preference.	Opera Full support Yes	Firefox Android No support No
drag	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
erase	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
getFileIcon	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android No support No
onChanged	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
onCreated	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
onErased	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
open	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
pause	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
removeFile	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
resume	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
search	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
setShelfEnabled	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
show	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
showDefaultFolder	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

events

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
Event	Chrome Full support Yes	Edge Partial support 14	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Event.addListener	Chrome Full support Yes	Edge Full support 14	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Event.removeListener	Chrome Full support Yes	Edge Full support 14	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Event.hasListener	Chrome Full support Yes	Edge Full support 14	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Event.hasListeners	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Event.addRules	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Event.getRules	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Event.removeRules	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Rule	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
UrlFilter	Chrome Full support Yes	Edge No support No	Firefox Full support 50	Opera Full support Yes	Firefox Android Full support 50

Legend

Full support  

Full support

Partial support  

Partial support

No support  

No support

extension

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ViewType	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
ViewType.sidebar	Chrome No support No	Edge No support No	Firefox Full support 54	Opera No support No	Firefox Android No support No
getBackgroundPage	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
getExtensionTabs DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
getURL DeprecatedNon-standard	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
getViews	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Notes Full support 45 Notes Notes If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then its return value will not include the extension's background page.	Opera Full support Yes	Firefox Android Full support 48 Notes Full support 48 Notes Notes If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then its return value will not include the extension's background page.
inIncognitoContext	Chrome Full support Yes	Edge Full support 17	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
isAllowedFileSchemeAccess	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
isAllowedIncognitoAccess	Chrome Full support Yes	Edge Full support 17	Firefox Full support 48	Opera Full support Yes	Firefox Android Full support 48
lastError	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48
onRequest DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onRequestExternal DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
sendRequest DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
setUpdateUrlData	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

Non-standard. Expect poor cross-browser support.

Non-standard. Expect poor cross-browser support.

Deprecated. Not for use in new websites.

Deprecated. Not for use in new websites.

See implementation notes.

See implementation notes.

extensionTypes

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ImageDetails	Chrome Partial support Partial Notes Partial support Partial Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Edge Partial support 14 Notes Partial support 14 Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Firefox Full support 45	Opera Partial support Partial Notes Partial support Partial Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Firefox Android Full support 48
ImageFormat	Chrome Partial support Partial Notes Partial support Partial Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Edge Partial support 14 Notes Partial support 14 Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Firefox Full support 45	Opera Partial support Partial Notes Partial support Partial Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Firefox Android Full support 48
RunAt	Chrome Partial support 20 Notes Partial support 20 Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Edge No support No	Firefox Full support 45	Opera Partial support 15 Notes Partial support 15 Notes Notes This feature is supported but not exposed through the 'extensionTypes' object.	Firefox Android Full support 48
CSSOrigin	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android Full support 53

Legend

Full support  

Full support

Partial support  

Partial support

No support  

No support

See implementation notes.

See implementation notes.

find

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
find	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
highlightResults	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
removeHighlighting	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

history

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
HistoryItem	Chrome Full support Yes	Edge No support No	Firefox Full support 49	Opera Full support Yes	Firefox Android No support No
HistoryItem.typedCount	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
TransitionType	Chrome Full support Yes	Edge No support No	Firefox Full support 50	Opera Full support Yes	Firefox Android No support No
VisitItem	Chrome Full support Yes	Edge No support No	Firefox Full support 50	Opera Full support Yes	Firefox Android No support No
addUrl	Chrome Full support Yes	Edge No support No	Firefox Full support 49	Opera Full support Yes	Firefox Android No support No
addUrl.title	Chrome No support No	Edge No support No	Firefox Full support 49	Opera No support No	Firefox Android No support No
addUrl.transition	Chrome No support No	Edge No support No	Firefox Full support 49	Opera No support No	Firefox Android No support No
addUrl.visitTime	Chrome No support No	Edge No support No	Firefox Full support 49	Opera No support No	Firefox Android No support No
deleteAll	Chrome Full support Yes	Edge No support No	Firefox Full support 49	Opera Full support Yes	Firefox Android No support No
deleteRange	Chrome Full support Yes	Edge No support No	Firefox Full support 49	Opera Full support Yes	Firefox Android No support No
deleteUrl	Chrome Full support Yes	Edge No support No	Firefox Full support 49	Opera Full support Yes	Firefox Android No support No
getVisits	Chrome Full support Yes	Edge No support No	Firefox Full support 50	Opera Full support Yes	Firefox Android No support No
onTitleChanged	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android No support No
onVisitRemoved	Chrome Full support Yes	Edge No support No	Firefox Full support 50	Opera Full support Yes	Firefox Android No support No
onVisited	Chrome Full support Yes	Edge No support No	Firefox Full support 50 Notes Full support 50 Notes Notes Before version 56, the result object's 'title' was always an empty string. From version 56 onwards, it is set to the last known title, if that is available, or an empty string otherwise.	Opera Full support Yes	Firefox Android No support No
search	Chrome Full support Yes	Edge No support No	Firefox Full support 49	Opera Full support Yes	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

i18n

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
LanguageCode	Chrome Full support 47	Edge Full support 14	Firefox Full support 45	Opera Full support 34	Firefox Android Full support 48
detectLanguage	Chrome Full support 47	Edge No support No	Firefox Full support 47	Opera Full support 34	Firefox Android Full support 48
getAcceptLanguages	Chrome Full support 47	Edge Full support 14	Firefox Full support 47	Opera Full support 34	Firefox Android Full support 48
getMessage	Chrome Full support 17	Edge Full support 14 Notes Full support 14 Notes Notes Throws an exception instead returning an empty string if the message does not exist. Notes Expects substitutions to be strings, while other browsers allow any value which is then converted to a string.	Firefox Full support 45 Notes Full support 45 Notes Notes Firefox 47 and earlier returns "??" instead of "" if the message is not found in _locales, bug 1258199 changed this act to match Chrome, landed on Firefox 48.	Opera Full support 15	Firefox Android Full support 48
getUILanguage	Chrome Full support 35	Edge Full support 14	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 48

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

identity

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
getRedirectURL	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android No support No
launchWebAuthFlow	Chrome Full support Yes	Edge No support No	Firefox Full support 53 Full support 53 No support 53 — 63 Notes Notes The redirect_uri URL parameter is required.	Opera Full support Yes	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

idle

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
IdleState	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
onStateChanged	Chrome Full support Yes	Edge No support No	Firefox Full support 51	Opera Full support Yes	Firefox Android Full support 51
onStateChanged.locked	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
queryState	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45 Notes Full support 45 Notes Notes Before version 51, Firefox always reports 'active'. After version 51, Firefox reports 'active' or 'idle' as appropriate.	Opera Full support Yes	Firefox Android Full support 48 Notes Full support 48 Notes Notes Before version 51, Firefox always reports 'active'. After version 51, Firefox reports 'active' or 'idle' as appropriate.
queryState.locked	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
setDetectionInterval	Chrome Full support Yes	Edge Full support 15	Firefox Full support 51	Opera Full support Yes	Firefox Android Full support 51

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

management

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ExtensionInfo	Chrome Full support Yes	Edge No support No	Firefox Full support 51	Opera Full support Yes	Firefox Android Full support 51
ExtensionInfo.disabledReason	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
ExtensionInfo.offlineEnabled	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
ExtensionInfo.type	Chrome Full support Yes	Edge No support No	Firefox Full support 55	Opera Full support Yes	Firefox Android Full support 55
ExtensionInfo.versionName	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
get	Chrome Full support Yes	Edge No support No	Firefox Full support 56	Opera Full support Yes	Firefox Android Full support 56
getAll	Chrome Full support Yes	Edge No support No	Firefox Full support 55 Notes Full support 55 Notes Notes Before version 56, only extensions whose 'type' is 'theme' are returned.	Opera Full support Yes	Firefox Android Full support 55 Notes Full support 55 Notes Notes Before version 56, only extensions whose 'type' is 'theme' are returned.
getPermissionWarningsById	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
getPermissionWarningsByManifest	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
getSelf	Chrome Full support Yes	Edge No support No	Firefox Full support 51	Opera No support No	Firefox Android Full support 51
onDisabled	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onEnabled	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onInstalled	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onUninstalled	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
setEnabled	Chrome Full support Yes	Edge No support No	Firefox Full support 55 Notes Full support 55 Notes Notes Only extensions whose 'type' is 'theme' can be enabled and disabled.	Opera Full support Yes	Firefox Android Full support 55 Notes Full support 55 Notes Notes Only extensions whose 'type' is 'theme' can be enabled and disabled.
uninstall	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
uninstallSelf	Chrome Full support Yes	Edge No support No	Firefox Full support 51	Opera Full support Yes	Firefox Android Full support 51
uninstallSelf.dialogMessage	Chrome No support No	Edge No support No	Firefox Full support 51	Opera No support No	Firefox Android Full support 51

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

menus

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ACTION_MENU_TOP_LEVEL_LIMIT	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.ACTION_MENU_TOP_LEVEL_LIMIT	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.ACTION_MENU_TOP_LEVEL_LIMIT	Firefox Full support 55 Full support 55 Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.ACTION_MENU_TOP_LEVEL_LIMIT	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.ACTION_MENU_TOP_LEVEL_LIMIT	Firefox Android No support No
ContextType	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.ContextType	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.ContextType	Firefox Full support 55 Notes Full support 55 Notes Notes 'The 'editable' context does not include password fields. Use the 'password' context for this. Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.ContextType	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.ContextType	Firefox Android No support No
ContextType.bookmark	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
ContextType.browser_action	Chrome Full support Yes	Edge Full support 14	Firefox Full support 53 Notes Full support 53 Notes Notes 'The 'editable' context does not include password fields. Use the 'password' context for this.	Opera Full support Yes	Firefox Android No support No
ContextType.launcher	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support Yes	Firefox Android No support No
ContextType.page_action	Chrome Full support Yes	Edge Full support 14	Firefox Full support 53	Opera Full support Yes	Firefox Android No support No
ContextType.password	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android No support No
ContextType.tab	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android No support No
ContextType.tools_menu	Chrome No support No	Edge No support No	Firefox Full support 56 Notes Full support 56 Notes Notes Only available at menus.ContextType, not at contextMenus.ContextType.	Opera No support No	Firefox Android No support No
ItemType	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.ItemType	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.ItemType	Firefox Full support 55 Full support 55 Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.ItemType	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.ItemType	Firefox Android No support No
OnClickData	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.OnClickData	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.OnClickData	Firefox Full support 55 Full support 55 Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.OnClickData	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.OnClickData	Firefox Android No support No
OnClickData.bookmarkId	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
OnClickData.button	Chrome No support No	Edge No support No	Firefox Full support 64	Opera No support No	Firefox Android ?
OnClickData.frameId	Chrome Full support 35 Alternate Name Full support 35 Alternate Name Alternate Name Uses the non-standard name: contextMenus.OnClickData.frameId	Edge ?	Firefox Full support 55	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.OnClickData.frameId	Firefox Android No support No
OnClickData.linkText	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android No support No
OnClickData.modifiers	Chrome No support No	Edge No support No	Firefox Full support 54	Opera No support No	Firefox Android No support No
OnClickData.targetElementId	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android No support No
create	Chrome Full support Yes Notes Alternate Name Full support Yes Notes Alternate Name Notes Items that don't specify 'contexts' do not inherit contexts from their parents. Alternate Name Uses the non-standard name: contextMenus.create	Edge Full support 14 Notes Alternate Name Full support 14 Notes Alternate Name Notes Items that don't specify 'contexts' do not inherit contexts from their parents. Alternate Name Uses the non-standard name: contextMenus.create	Firefox Full support 55 Full support 55 Full support 48 Notes Alternate Name Notes Before version 53, items that don't specify 'contexts' do not inherit contexts from their parents. Alternate Name Uses the non-standard name: contextMenus.create	Opera Full support Yes Notes Alternate Name Full support Yes Notes Alternate Name Notes Items that don't specify 'contexts' do not inherit contexts from their parents. Alternate Name Uses the non-standard name: contextMenus.create	Firefox Android No support No
create: & in title sets access key	Chrome Full support Yes	Edge ?	Firefox Full support 63	Opera Full support Yes	Firefox Android No support No
create.command	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android No support No
create.icons	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android No support No
create.visible	Chrome Full support 62	Edge No support No	Firefox Full support 63	Opera Full support 49	Firefox Android No support No
getTargetElement	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android No support No
onClicked	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.onClicked	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.onClicked	Firefox Full support 55 Full support 55 Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.onClicked	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.onClicked	Firefox Android No support No
onHidden	Chrome No support No	Edge No support No	Firefox Full support 60 Full support 60 Full support 60 Alternate Name Alternate Name Uses the non-standard name: contextMenus.onHidden	Opera No support No	Firefox Android No support No
onShown	Chrome No support No	Edge No support No	Firefox Full support 60 Full support 60 Full support 60 Alternate Name Alternate Name Uses the non-standard name: contextMenus.onShown	Opera No support No	Firefox Android No support No
refresh	Chrome No support No	Edge No support No	Firefox Full support 60 Full support 60 Full support 60 Alternate Name Alternate Name Uses the non-standard name: contextMenus.refresh	Opera No support No	Firefox Android No support No
remove	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.remove	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.remove	Firefox Full support 55 Full support 55 Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.remove	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.remove	Firefox Android No support No
removeAll	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.removeAll	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.removeAll	Firefox Full support 55 Full support 55 Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.removeAll	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.removeAll	Firefox Android No support No
update	Chrome Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.update	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: contextMenus.update	Firefox Full support 55 Full support 55 Full support 48 Alternate Name Alternate Name Uses the non-standard name: contextMenus.update	Opera Full support Yes Alternate Name Full support Yes Alternate Name Alternate Name Uses the non-standard name: contextMenus.update	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

Compatibility unknown  

Compatibility unknown

See implementation notes.

See implementation notes.

Uses a non-standard name.

Uses a non-standard name.

notifications

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
NotificationOptions	Chrome Full support Yes	Edge Full support 17	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
NotificationOptions.appIconMaskUrl DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera ? Notes ? Notes Notes Specifying this option doesn't throw an error. It might or might not have any effect.	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.buttons	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No Notes No support No Notes Notes Specifying the 'buttons' option will cause an asynchronous error on Opera.	Firefox Android No support No
NotificationOptions.contextMessage	Chrome Full support 31	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored, on Opera 18 and above.	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.eventTime	Chrome Full support Yes	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera ? Notes ? Notes Notes Specifying this option doesn't throw an error. It might or might not have any effect.	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.imageUrl DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.isClickable	Chrome Full support 32	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera No support No Notes No support No Notes Notes Setting 'isClickable' to false will cause an asynchronous error on Opera 19 and above. Older Opera versions throw an error synchronously if this options is given.	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.items	Chrome Full support Yes Notes Full support Yes Notes Notes On macOS only the first item is shown.	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.priority	Chrome Full support Yes	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera Full support Yes	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.progress	Chrome Full support 30	Edge No support No	Firefox No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.	Opera No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored, on Opera 17 and above.	Firefox Android No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored.
NotificationOptions.requireInteraction	Chrome Full support 50	Edge No support No	Firefox No support No	Opera No support No Notes No support No Notes Notes Specifying this option doesn't throw an error, but its value is ignored, on Opera 37 and above.	Firefox Android No support No
TemplateType	Chrome Full support Yes	Edge Full support 17	Firefox Full support 45 Notes Full support 45 Notes Notes Only the 'basic' type is supported.	Opera Full support Yes Notes Full support Yes Notes Notes Only the 'basic' type is supported.	Firefox Android Full support 48 Notes Full support 48 Notes Notes Only the 'basic' type is supported.
clear	Chrome Full support 28	Edge Full support 17	Firefox Full support 45	Opera Full support 25	Firefox Android Full support 48
create	Chrome Full support 28	Edge Full support 17	Firefox Full support 45	Opera Full support 25	Firefox Android Full support 48
getAll	Chrome Full support 29	Edge Full support 17	Firefox Full support 45	Opera Full support 25	Firefox Android Full support 48
onButtonClicked	Chrome Full support 28	Edge Full support 17	Firefox No support No	Opera Full support 25	Firefox Android No support No
onClicked	Chrome Full support 28	Edge Full support 17	Firefox Full support 47	Opera Full support 25	Firefox Android Full support 48
onClosed	Chrome Full support 28	Edge Full support 17	Firefox Full support 45	Opera Full support 25	Firefox Android Full support 48
onClosed.byUser	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onShown	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android Full support 56
update	Chrome Full support 28	Edge Full support 17	Firefox No support No	Opera Full support 25 Notes Full support 25 Notes Notes Not supported on Macs.	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

Compatibility unknown  

Compatibility unknown

Non-standard. Expect poor cross-browser support.

Non-standard. Expect poor cross-browser support.

Deprecated. Not for use in new websites.

Deprecated. Not for use in new websites.

See implementation notes.

See implementation notes.

omnibox

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
OnInputEnteredDisposition	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
SuggestResult	Chrome Full support Yes	Edge No support No	Firefox Full support 52 Notes Full support 52 Notes Notes 'description' is interpreted as plain text, and XML markup is not recognised.	Opera Full support Yes	Firefox Android No support No
onInputCancelled	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
onInputChanged	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
onInputEntered	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
onInputStarted	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
setDefaultSuggestion	Chrome Full support Yes	Edge No support No	Firefox Full support 52 Notes Full support 52 Notes Notes 'description' is interpreted as plain text, and XML markup is not recognised.	Opera Full support Yes	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

pageAction

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ImageDataType	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getPopup	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 50 Notes Full support 50 Notes Notes The 'tabId' parameter is ignored: the page action popup is the same for all tabs.
getTitle	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
hide	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 50 Notes Full support 50 Notes Notes Before version 56, the 'tabId' parameter was ignored, and the page action was hidden for all tabs.
isShown	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
onClicked	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 50
openPopup	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
setIcon	Chrome Full support Yes Notes Full support Yes Notes Notes Before Chrome 23, `path` couldn't specify multiple icon files, but had to be a string specifying a single icon path.	Edge Full support 14	Firefox Full support 45	Opera Full support 15	Firefox Android No support No
setIcon.imageData	Chrome Full support 23	Edge No support No	Firefox Full support 45	Opera Full support 15	Firefox Android No support No
setIcon: The path and imageData properties of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setPopup	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 50 Notes Full support 50 Notes Notes The 'tabId' parameter is ignored, and the popup is set for all tabs.
setPopup: The popup property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setTitle	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
setTitle: The title property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
show	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 50 Notes Full support 50 Notes Notes Before version 56, the 'tabId' parameter was ignored, and the page action was shown for all tabs.

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

permissions

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
contains	Chrome Full support Yes	Edge No support No	Firefox Full support 55	Opera Full support Yes	Firefox Android Full support 55
getAll	Chrome Full support Yes	Edge No support No	Firefox Full support 55	Opera Full support Yes	Firefox Android Full support 55
onAdded	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onRemoved	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
Permissions	Chrome Full support Yes	Edge No support No	Firefox Full support 55	Opera Full support Yes	Firefox Android Full support 55
remove	Chrome Full support Yes	Edge No support No	Firefox Full support 55	Opera Full support Yes	Firefox Android Full support 55
request	Chrome Full support Yes	Edge No support No	Firefox Full support 55 Notes Full support 55 Notes Notes The user will be prompted again for permissions that have been previously granted and then removed. Notes It's not possible to request permissions from a popup or a sidebar document. No support 56 — 61 Notes Notes It's not possible to request permissions from an options page that's embedded in about:addons. To request permissions from an options page, set the open_in_tab property in the options_ui manifest key, so the options page opens in its own tab.	Opera Full support Yes	Firefox Android Full support 55 Notes Full support 55 Notes Notes The user will be prompted again for permissions that have been previously granted and then removed. Notes It's not possible to request permissions from a popup or a sidebar document. No support 56 — 61 Notes Notes It's not possible to request permissions from an options page that's embedded in about:addons. To request permissions from an options page, set the open_in_tab property in the options_ui manifest key, so the options page opens in its own tab.

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

pkcs11

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
getModuleSlots Non-standard	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
installModule Non-standard	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
isModuleInstalled Non-standard	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
uninstallModule Non-standard	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

Non-standard. Expect poor cross-browser support.

Non-standard. Expect poor cross-browser support.

privacy

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
network.networkPredictionEnabled	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android Full support 54
network.peerConnectionEnabled	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android Full support 55
network.webRTCIPHandlingPolicy	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android Full support 54
services.passwordSavingEnabled	Chrome Full support Yes	Edge No support No	Firefox Full support 56	Opera Full support Yes	Firefox Android Full support 56
websites.cookieConfig	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
websites.firstPartyIsolate	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android Full support 58
websites.hyperlinkAuditingEnabled	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android Full support 54
websites.protectedContentEnabled	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
websites.referrersEnabled	Chrome Full support Yes	Edge No support No	Firefox Full support 56	Opera Full support Yes	Firefox Android Full support 56
websites.resistFingerprinting	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android Full support 58
websites.thirdPartyCookiesAllowed	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
websites.trackingProtectionMode	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android Full support 57

Legend

Full support  

Full support

No support  

No support

proxy

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
onError	Chrome No support No	Edge No support No	Firefox Full support 60 Full support 60 Full support 55 Alternate Name Alternate Name Uses the non-standard name: onProxyError	Opera No support No	Firefox Android Full support 60 Full support 60 Full support 55 Alternate Name Alternate Name Uses the non-standard name: onProxyError
onRequest	Chrome No support No	Edge No support No	Firefox Full support 60	Opera No support No	Firefox Android Full support 60
ProxyInfo	Chrome No support No	Edge No support No	Firefox Full support 60	Opera No support No	Firefox Android Full support 60
RequestDetails	Chrome No support No	Edge No support No	Firefox Full support 60	Opera No support No	Firefox Android Full support 60
register	Chrome No support No	Edge No support No	Firefox Full support 56 Full support 56 Full support 55 Alternate Name Alternate Name Uses the non-standard name: registerProxyScript	Opera No support No	Firefox Android Full support 56 Full support 56 Full support 55 Alternate Name Alternate Name Uses the non-standard name: registerProxyScript
settings	Chrome No support No	Edge No support No	Firefox Full support 60 Notes Full support 60 Notes Notes In version 59, this property was listed as proxyConfig in the browserSettings namespace, but had a bug that made it mostly unusable.	Opera No support No	Firefox Android No support No
unregister	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android Full support 56

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

Uses a non-standard name.

Uses a non-standard name.

runtime

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
MessageSender	Chrome Full support 26	Edge Full support 14	Firefox Full support 45 Notes Full support 45 Notes Notes Before version 54, 'id' was the add-on's internal UUID, not the add-on ID.	Opera Full support 15	Firefox Android Full support 48 Notes Full support 48 Notes Notes Before version 54, 'id' was the add-on's internal UUID, not the add-on ID.
MessageSender.url	Chrome Full support 28	Edge Full support 14 Notes Full support 14 Notes Notes The `url` is missing when the message was sent by an extension view.	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
MessageSender.tlsChannelId	Chrome Full support 32	Edge No support No	Firefox Full support 45	Opera Full support 19	Firefox Android Full support 48
MessageSender.frameId	Chrome Full support 41	Edge Full support 14	Firefox Full support 45	Opera Full support 28	Firefox Android Full support 48
OnInstalledReason	Chrome Full support Yes Notes Full support Yes Notes Notes Uses 'chrome_update' instead of 'browser_update'.	Edge Full support 14 Notes Full support 14 Notes Notes Only supports 'install' and 'update'.	Firefox Full support 45	Opera Full support Yes Notes Full support Yes Notes Notes Uses 'chrome_update' instead of 'browser_update'.	Firefox Android Full support 48
OnRestartRequiredReason	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
PlatformArch	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
PlatformInfo	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
PlatformInfo.nacl_arch	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
PlatformNaclArch	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
PlatformOs	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
Port	Chrome Full support 26	Edge Full support 15	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
Port.error	Chrome No support No	Edge No support No	Firefox Full support 52	Opera No support No	Firefox Android Full support 52
RequestUpdateCheckStatus	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
connect	Chrome Full support 26	Edge Full support 14	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
connectNative	Chrome Full support 29	Edge Full support 15	Firefox Full support 50	Opera Full support 16	Firefox Android No support No
getBackgroundPage	Chrome Full support 22	Edge Full support 14	Firefox Full support 45 Notes Full support 45 Notes Notes If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then it will always return null.	Opera Full support 15	Firefox Android Full support 48 Notes Full support 48 Notes Notes If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then it will always return null.
getBrowserInfo	Chrome No support No	Edge No support No	Firefox Full support 51	Opera No support No	Firefox Android Full support 51
getManifest	Chrome Full support 22	Edge Full support 14	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
getPackageDirectoryEntry	Chrome Full support 29	Edge No support No	Firefox No support No	Opera Full support 16	Firefox Android No support No
getPlatformInfo	Chrome Full support 29	Edge No support No	Firefox Full support 45	Opera Full support 16	Firefox Android Full support 48
getURL	Chrome Full support 22	Edge Full support 14	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
id	Chrome Full support 22	Edge Full support 14	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
lastError	Chrome Full support Yes Notes Full support Yes Notes Notes lastError is not an Error object. Instead, it is a plain Object with the error text as the string value of the 'message' property.	Edge Full support 14	Firefox Full support 47	Opera Full support Yes Notes Full support Yes Notes Notes lastError is not an Error object. Instead, it is a plain Object with the error text as the string value of the 'message' property.	Firefox Android Full support 48
onBrowserUpdateAvailable DeprecatedNon-standard	Chrome Full support 27	Edge No support No	Firefox No support No	Opera Full support 15	Firefox Android No support No
onConnect	Chrome Full support 26	Edge Full support 14	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
onConnectExternal	Chrome Full support 26	Edge No support No	Firefox Full support 54	Opera Full support 15	Firefox Android Full support 54
onInstalled	Chrome Full support 22	Edge Full support 14	Firefox Full support 52 Notes Full support 52 Notes Notes Before version 55, this event is not triggered for temporarily installed add-ons.	Opera Full support 15	Firefox Android Full support 52 Notes Full support 52 Notes Notes Before version 55, this event is not triggered for temporarily installed add-ons.
onMessage	Chrome Full support 26	Edge Full support 14	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
onMessage: Respond with Promise	Chrome No support No	Edge No support No	Firefox Full support Yes	Opera No support No	Firefox Android Full support Yes
onMessageExternal	Chrome Full support 26	Edge No support No	Firefox Full support 54	Opera Full support 15	Firefox Android Full support 54
onMessageExternal: Respond with Promise	Chrome No support No	Edge No support No	Firefox Full support Yes	Opera No support No	Firefox Android Full support Yes
onRestartRequired	Chrome Full support 29	Edge No support No	Firefox No support No	Opera Full support 16	Firefox Android No support No
onStartup	Chrome Full support 23	Edge No support No	Firefox Full support 52	Opera Full support 15	Firefox Android Full support 52
onSuspend	Chrome Full support 22	Edge No support No	Firefox No support No	Opera Full support 15	Firefox Android No support No
onSuspendCanceled	Chrome Full support 22	Edge No support No	Firefox No support No	Opera Full support 15	Firefox Android No support No
onUpdateAvailable	Chrome Full support 25	Edge No support No	Firefox Full support 51	Opera Full support 15	Firefox Android Full support 51
openOptionsPage	Chrome Full support 42	Edge No support No	Firefox Full support 48	Opera Full support 29	Firefox Android Full support 57
reload	Chrome Full support 25	Edge Full support 15	Firefox Full support 51	Opera Full support 15	Firefox Android Full support 51
requestUpdateCheck	Chrome Full support 25	Edge No support No	Firefox No support No	Opera Full support 15	Firefox Android No support No
sendMessage	Chrome Full support 26	Edge Full support 14 Notes Full support 14 Notes Notes `runtime.onMessage` listeners in extension views receive the messages they sent.	Firefox Full support 45	Opera Full support 15	Firefox Android Full support 48
sendNativeMessage	Chrome Full support 29	Edge Full support 15	Firefox Full support 50	Opera Full support 16	Firefox Android No support No
setUninstallURL	Chrome Full support 41	Edge Full support 15	Firefox Full support 47	Opera Full support 28	Firefox Android Full support 48

Legend

Full support  

Full support

No support  

No support

Non-standard. Expect poor cross-browser support.

Non-standard. Expect poor cross-browser support.

Deprecated. Not for use in new websites.

Deprecated. Not for use in new websites.

See implementation notes.

See implementation notes.

search

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
get	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android No support No
search	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

sessions

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
Filter	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
MAX_SESSION_RESULTS	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
Session	Chrome Full support Yes	Edge No support No	Firefox Full support 52 Notes Full support 52 Notes Notes 'Tab' objects in Sessions don't contain the 'url', 'title', or 'favIconUrl' properties.	Opera Full support Yes	Firefox Android No support No
forgetClosedTab	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android No support No
forgetClosedWindow	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android No support No
getRecentlyClosed	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
getTabValue	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
getWindowValue	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
onChanged	Chrome Full support Yes	Edge No support No	Firefox Full support 53	Opera Full support Yes	Firefox Android No support No
removeTabValue	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
removeWindowValue	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
restore	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android No support No
setTabValue	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
setWindowValue	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

sidebarAction

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
ImageDataType	Chrome No support No	Edge No support No	Firefox Full support 54	Opera Full support 30	Firefox Android No support No
close	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
getPanel	Chrome No support No	Edge No support No	Firefox Full support 54	Opera Full support 30	Firefox Android No support No
getTitle	Chrome No support No	Edge No support No	Firefox Full support 54	Opera Full support 30	Firefox Android No support No
isOpen	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
open	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
setIcon	Chrome No support No	Edge No support No	Firefox Full support 54	Opera Full support 30	Firefox Android No support No
setIcon: The path and imageData properties of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setPanel	Chrome No support No	Edge No support No	Firefox Full support 54	Opera Full support 30	Firefox Android No support No
setPanel: The panel property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
setTitle	Chrome No support No	Edge No support No	Firefox Full support 54	Opera Full support 30	Firefox Android No support No
setTitle: The title property of the details parameter can be set to null.	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

storage

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
StorageArea	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
StorageArea.clear	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support 33	Firefox Android Full support 48
StorageArea.get	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support 33	Firefox Android Full support 48
StorageArea.getBytesInUse	Chrome Full support Yes	Edge Full support 14	Firefox No support No	Opera Full support 33	Firefox Android No support No
StorageArea.remove	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support 33	Firefox Android Full support 48
StorageArea.set	Chrome Full support Yes	Edge Full support 14 Notes Full support 14 Notes Notes storage is limited to 1MB per value.	Firefox Full support 45	Opera Full support 33	Firefox Android Full support 48
StorageChange	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
local	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45 Notes Full support 45 Notes Notes The storage API is supported in content scripts from version 48.	Opera Full support Yes	Firefox Android Full support 48
managed	Chrome Full support Yes	Edge No support No	Firefox Full support 57 Notes Full support 57 Notes Notes Platform-specific storage backends, such as Windows registry keys, are not supported. Notes Enforcement of extension-provided storage schemas is not supported. Notes The onChanged event is not supported.	Opera No support No	Firefox Android No support No
onChanged	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 48
sync	Chrome Full support Yes	Edge Full support 15	Firefox Full support 53	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

See implementation notes.

See implementation notes.

tabs

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
MutedInfo	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android No support No
MutedInfoReason	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android No support No
PageSettings	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android No support No
PageSettings.edgeBottom	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
PageSettings.edgeLeft	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
PageSettings.edgeRight	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
PageSettings.edgeTop	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android No support No
TAB_ID_NONE	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.active	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.audible	Chrome Full support 45	Edge No support No	Firefox Full support 45	Opera Full support 32	Firefox Android Full support 54
Tab.autoDiscardable	Chrome Full support 54	Edge No support No	Firefox No support No	Opera Full support 41	Firefox Android No support No
Tab.cookieStoreId	Chrome No support No	Edge No support No	Firefox Full support 52	Opera No support No	Firefox Android No support No
Tab.discarded	Chrome Full support 54	Edge No support No	Firefox Full support 57	Opera Full support 41	Firefox Android Full support 57
Tab.favIconUrl	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
Tab.height	Chrome Full support 31	Edge No support No	Firefox Full support 45	Opera Full support 18	Firefox Android Full support 54
Tab.highlighted	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.id	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.incognito	Chrome Full support Yes	Edge Full support 14 Alternate Name Full support 14 Alternate Name Alternate Name Uses the non-standard name: inPrivate	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.index	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.isArticle	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
Tab.isInReaderMode	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
Tab.lastAccessed	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android Full support 56
Tab.mutedInfo	Chrome Full support 46	Edge No support No	Firefox Full support 45	Opera Full support 33	Firefox Android Full support 54
Tab.openerTabId	Chrome Full support 18	Edge No support No	Firefox Full support 57	Opera Full support 15	Firefox Android No support No
Tab.pinned	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.selected DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.sessionId	Chrome Full support 31	Edge No support No	Firefox No support No	Opera Full support 18	Firefox Android No support No
Tab.status	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.title	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.url	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
Tab.width	Chrome Full support 31	Edge No support No	Firefox Full support 45	Opera Full support 18	Firefox Android Full support 54
Tab.windowId	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
TabStatus	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
WindowType	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
ZoomSettings	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
ZoomSettingsMode	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
ZoomSettingsScope	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
captureTab	Chrome No support No	Edge No support No	Firefox Full support 59	Opera No support No	Firefox Android Full support 59
captureVisibleTab	Chrome Full support Yes Notes Full support Yes Notes Notes The default file format is 'jpeg'.	Edge Full support 15	Firefox Full support 47	Opera Full support Yes Notes Full support Yes Notes Notes The default file format is 'jpeg'.	Firefox Android Full support 54
connect	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
create	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
detectLanguage	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
discard	Chrome Full support 54 Notes Full support 54 Notes Notes Only accepts a single tab ID as a parameter, not an array. Notes The tab ID argument is optional: if it is omitted, the browser discards the least important tab. Notes The callback is passed a Tab object representing the tab that was discarded. Notes Tabs whose document contains a beforeunload listener that displays a prompt will be discarded.	Edge Full support 14	Firefox Full support 58	Opera Full support Yes Notes Full support Yes Notes Notes Only accepts a single tab ID as a parameter, not an array. Notes The tab ID argument is optional: if it is omitted, the browser discards the least important tab. Notes The callback is passed a Tab object representing the tab that was discarded. Notes Tabs whose document contains a beforeunload listener that displays a prompt will be discarded.	Firefox Android No support No
duplicate	Chrome Full support Yes	Edge No support No	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 54
executeScript	Chrome Full support Yes Notes Full support Yes Notes Notes Extensions can't inject scripts into their own pages using this API.	Edge Full support 14	Firefox Full support 43 Notes Full support 43 Notes Notes Before version 50, Firefox would pass a single result value into its callback rather than an array, unless 'allFrames' had been set.	Opera Full support Yes Notes Full support Yes Notes Notes Extensions can't inject scripts into their own pages using this API.	Firefox Android Full support 54
executeScript.runAt	Chrome Full support 20	Edge No support No	Firefox Full support 43	Opera Full support 15	Firefox Android Full support 54
executeScript.frameId	Chrome Full support 39	Edge No support No	Firefox Full support 43 Notes Full support 43 Notes Notes 'allFrames' and 'frameId' can't both be set at the same time.	Opera Full support 26	Firefox Android Full support 54 Notes Full support 54 Notes Notes 'allFrames' and 'frameId' can't both be set at the same time.
executeScript.matchAboutBlank	Chrome Full support 39	Edge Full support 14	Firefox Full support 53	Opera Full support 26	Firefox Android Full support 54
get	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
getAllInWindow DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
getCurrent	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
getSelected DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
getZoom	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
getZoomSettings	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
hide ExperimentalNon-standard	Chrome No support No	Edge No support No	Firefox Full support 61 Full support 61 No support 59 — 61 Disabled Disabled From version 59 until version 61 (exclusive): this feature is behind the extensions.webextensions.tabhide.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	Opera No support No	Firefox Android No support No
highlight	Chrome Full support Yes	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android No support No
insertCSS	Chrome Full support Yes	Edge Full support 14	Firefox Full support 47	Opera Full support Yes	Firefox Android Full support 54
insertCSS.runAt	Chrome Full support 20	Edge No support No	Firefox Full support 47	Opera Full support 15	Firefox Android Full support 54
insertCSS.frameId	Chrome Full support 39	Edge Full support 14	Firefox Full support 47	Opera Full support 26	Firefox Android Full support 54
insertCSS.matchAboutBlank	Chrome Full support 39	Edge Full support 14	Firefox No support No	Opera Full support 26	Firefox Android No support No
insertCSS.cssOrigin	Chrome No support No	Edge No support No	Firefox Full support 53	Opera No support No	Firefox Android Full support 54
move	Chrome Full support Yes	Edge No support No	Firefox Full support 46	Opera Full support Yes	Firefox Android No support No
onActivated	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
onActiveChanged DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
onAttached	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
onCreated	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
onDetached	Chrome Full support Yes	Edge Full support 15	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
onHighlightChanged DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
onHighlighted	Chrome Full support Yes	Edge No support No	Firefox Full support 63 Full support 63 No support 45 — 62 Notes Notes Implemented as an alias for onActivated.	Opera No support No	Firefox Android Full support 54 Notes Full support 54 Notes Notes Implemented as an alias for onActivated.
onMoved	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
onRemoved	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
onReplaced	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
onSelectionChanged DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
onUpdated	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
onUpdated.extraParameters	Chrome No support No	Edge No support No	Firefox Full support 61	Opera No support No	Firefox Android No support No
onZoomChange	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
print	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android No support No
printPreview	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android No support No
query	Chrome Full support Yes	Edge Full support 14 Notes Full support 14 Notes Notes The panel, app, devtools and popup values for WindowType are not supported.	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
reload	Chrome Full support Yes	Edge Full support 17	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
remove	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
removeCSS	Chrome No support No	Edge No support No	Firefox Full support 49	Opera No support No	Firefox Android Full support 54
saveAsPDF	Chrome No support No	Edge No support No	Firefox Full support 56 Notes Full support 56 Notes Notes This function does not work on macOS.	Opera No support No	Firefox Android No support No
sendMessage	Chrome Full support Yes	Edge Full support 14 Notes Full support 14 Notes Notes No response is sent after the receiving tab is refreshed if there is no `runtime.onMessage` listener.	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54
sendRequest DeprecatedNon-standard	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera No support No	Firefox Android No support No
setZoom	Chrome Full support Yes	Edge No support No	Firefox Full support 45	Opera Full support Yes	Firefox Android No support No
setZoomSettings	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No
show ExperimentalNon-standard	Chrome No support No	Edge No support No	Firefox Full support 61 Full support 61 No support 59 — 61 Disabled Disabled From version 59 until version 61 (exclusive): this feature is behind the extensions.webextensions.tabhide.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	Opera No support No	Firefox Android No support No
toggleReaderMode	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
update	Chrome Full support Yes	Edge Full support 14	Firefox Full support 45	Opera Full support Yes	Firefox Android Full support 54

Legend

Full support  

Full support

No support  

No support

Experimental. Expect behavior to change in the future.

Experimental. Expect behavior to change in the future.

Non-standard. Expect poor cross-browser support.

Non-standard. Expect poor cross-browser support.

Deprecated. Not for use in new websites.

Deprecated. Not for use in new websites.

See implementation notes.

See implementation notes.

User must explicitly enable this feature.

User must explicitly enable this feature.

Uses a non-standard name.

Uses a non-standard name.

theme

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
Theme	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android No support No
getCurrent	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
onUpdated	Chrome No support No	Edge No support No	Firefox Full support 58	Opera No support No	Firefox Android No support No
reset	Chrome No support No	Edge No support No	Firefox Full support 56	Opera No support No	Firefox Android No support No
reset.windowId	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No
update	Chrome No support No	Edge No support No	Firefox Full support 55	Opera No support No	Firefox Android No support No
update.windowId	Chrome No support No	Edge No support No	Firefox Full support 57	Opera No support No	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

topSites

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
MostVisitedURL	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android Full support 52
MostVisitedURL.favicon	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android Full support 63
get	Chrome Full support Yes	Edge No support No	Firefox Full support 52	Opera Full support Yes	Firefox Android Full support 52
get.options	Chrome No support No	Edge No support No	Firefox Full support 63	Opera No support No	Firefox Android Full support 63

Legend

Full support  

Full support

No support  

No support

types

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
BrowserSetting	Chrome Full support Yes	Edge No support No	Firefox Full support 54	Opera Full support Yes	Firefox Android Full support 54
BrowserSetting.onChange	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support Yes	Firefox Android No support No

Legend

Full support  

Full support

No support  

No support

webNavigation

Update compatibility data on GitHub

	Desktop				Mobile
	Chrome	Edge	Firefox	Opera	Firefox for Android
TransitionQualifier	Chrome Full support Yes	Edge No support No	Firefox Full support 48 Notes Full support 48 Notes Notes 'server_redirect' is limited to top-level frames and 'client_redirect' is not supplied when redirections are created by JavaScript.	Opera Full support 17	Firefox Android Full support 48 Notes Full support 48 Notes Notes 'server_redirect' is limited to top-level frames and 'client_redirect' is not supplied when redirections are created by JavaScript.
TransitionQualifier.from_address_bar	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
TransitionType	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support 17	Firefox Android Full support 48
TransitionType.auto_bookmark	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
TransitionType.auto_subframe	Chrome Full support Yes	Edge No support No	Firefox Full support 48 Notes Full support 48 Notes Notes Partially supported as the default transition type for subframes.	Opera Full support 17	Firefox Android Full support 48 Notes Full support 48 Notes Notes Partially supported as the default transition type for subframes.
TransitionType.form_submit	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support 17	Firefox Android Full support 48
TransitionType.generated	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
TransitionType.keyword	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
TransitionType.keyword_generated	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
TransitionType.link	Chrome Full support Yes	Edge No support No	Firefox Full support 48 Notes Full support 48 Notes Notes Partially supported as the default transition type for top-level frames.	Opera Full support 17	Firefox Android Full support 48 Notes Full support 48 Notes Notes Partially supported as the default transition type for top-level frames.
TransitionType.manual_subframe	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
TransitionType.reload	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support 17	Firefox Android Full support 48
TransitionType.start_page	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
TransitionType.typed	Chrome Full support Yes	Edge No support No	Firefox No support No	Opera Full support 17	Firefox Android No support No
getAllFrames	Chrome Full support Yes	Edge Full support 14	Firefox Full support 47	Opera Full support 17	Firefox Android Full support 48
getFrame	Chrome Full support Yes	Edge Full support 14	Firefox Full support 47	Opera Full support 17	Firefox Android Full support 48
onBeforeNavigate	Chrome Full support Yes Notes Full support Yes Notes Notes If the filter parameter is empty, Chrome matches all URLs.	Edge Full support 14 Notes Full support 14 Notes Notes Filtering is not supported.	Firefox Full support 45 Notes Full support 45 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.	Opera Full support 17 Notes Full support 17 Notes Notes If the filter parameter is empty, Opera matches all URLs.	Firefox Android Full support 48 Notes Full support 48 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.
onCommitted	Chrome Full support Yes Notes Full support Yes Notes Notes If the filter parameter is empty, Chrome matches all URLs.	Edge Full support 14 Notes Full support 14 Notes Notes Filtering is not supported.	Firefox Full support 45 Notes Full support 45 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.	Opera Full support 17 Notes Full support 17 Notes Notes If the filter parameter is empty, Opera matches all URLs.	Firefox Android Full support 48 Notes Full support 48 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.
onCommitted.transitionQualifiers	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support 17	Firefox Android Full support 48
onCommitted.transitionType	Chrome Full support Yes	Edge No support No	Firefox Full support 48	Opera Full support 17	Firefox Android Full support 48
onCompleted	Chrome Full support Yes Notes Full support Yes Notes Notes If the filter parameter is empty, Chrome matches all URLs.	Edge Full support 14 Notes Full support 14 Notes Notes Filtering is not supported.	Firefox Full support 45 Notes Full support 45 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.	Opera Full support 17 Notes Full support 17 Notes Notes If the filter parameter is empty, Opera matches all URLs.	Firefox Android Full support 48 Notes Full support 48 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.
onCreatedNavigationTarget	Chrome Full support Yes Notes Full support Yes Notes Notes If a blocked popup is unblocked by the user, the event is still not sent.	Edge Full support 14	Firefox Full support 54 Notes Full support 54 Notes Notes If the filter parameter is empty, Firefox raises an exception. Notes If a blocked popup is unblocked by the user, the event is then sent.	Opera Full support 17 Notes Full support 17 Notes Notes If a blocked popup is unblocked by the user, the event is still not sent.	Firefox Android Full support 54 Notes Full support 54 Notes Notes If the filter parameter is empty, Firefox raises an exception. Notes If a blocked popup is unblocked by the user, the event is then sent. Notes This event is only sent in the 'window.open()' case.
onCreatedNavigationTarget.sourceProcessId	Chrome Full support Yes	Edge Full support 14	Firefox No support No	Opera Full support 17	Firefox Android No support No
onCreatedNavigationTarget.windowId	Chrome No support No	Edge Full support 14	Firefox Full support 54	Opera Full support 17	Firefox Android Full support 54
onDOMContentLoaded	Chrome Full support Yes Notes Full support Yes Notes Notes If the filter parameter is empty, Chrome matches all URLs.	Edge Full support 14 Notes Full support 14 Notes Notes Filtering is not supported.	Firefox Full support 45 Notes Full support 45 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.	Opera Full support 17 Notes Full support 17 Notes Notes If the filter parameter is empty, Opera matches all URLs.	Firefox Android Full support 48 Notes Full support 48 Notes Notes Filtering is supported from version 50. Notes If the filter parameter is empty, Firefox raises an exception.
onErrorOccurre