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An ExtensionInfo object contains information about an add-on.


It is an object with the following properties:

string. The add-on's description, taken from the manifest.json description key.
string. If the add-on is disabled, the reason it was disabled. One of "unknown" or "permissions_increase".
boolean. Whether or not the add-on is currently enabled.
string. The add-on's homepage URL, taken from the manifest.json homepage_url key.
array of string. The add-on's host permissions.
array of object. Information about the add-on's icons. An array of objects, one for each icon. Each object contains two properties:
  • size: an integer representing the icon's width and height in pixels.
  • url: a string containing a relative URL to the icon, starting at the add-on's root.
string. The add-on's ID.
string. String describing how the add-on was installed. One of the following:
  • "admin": the add-on was installed because of an administrative policy.
  • "development": the add-on was installed unpacked from disk.
  • "normal": the add-on was installed normally from an install package.
  • "sideload": the add-on was installed by some other software on the user's computer.
  • "other": the add-on was installed in some other way.
boolean. Whether this add-on can be disabled or uninstalled by the user.
string. The add-on's name, taken from the manifest.json name key.
boolean. Whether the add-on claims to support offline.
string. URL for the item's options page, if it has one. This is a relative URL, starting at the add-on's root.
array of string. The add-on's API permissions.
string. A short version of the add-on's name, taken from the manifest.json short_name key.
string. String describing the type of add-on. This is used to distinguish extensions from apps and themes. It may take any of the following values:
  • "extension": most common type of add-on.
  • "hosted_app"
  • "packaged_app"
  • "legacy_packaged_app"
  • "theme"
string. URL for updates to this add-on, taken from the manifest.json applications key.
string. Version of this add-on, taken from the manifest.json version key.
string. Descriptive name for this add-on's version, taken from the manifest.json version_name key.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic support Yes No5151 Yes
disabledReason Yes No No No Yes
offlineEnabled Yes No No No Yes
type Yes No5555 Yes
versionName Yes No No No Yes


This API is based on Chromium's chrome.management API. This documentation is derived from management.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

Document Tags and Contributors

 Contributors to this page: freaktechnik, andrewtruongmoz, wbamberg
 Last updated by: freaktechnik,