runtime.OnInstalledReason

The reason that the runtime.onInstalled event is being dispatched.

Type

Values of this type are strings. Possible values are:

"install"

The extension was installed.

"update"

The extension was updated to a new version.

"browser_update" or, for Chrome, "chrome_update"

The browser was updated to a new version.

"shared_module_update"

Another extension, which contains a module used by this extension, was updated.

Browser compatibility

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desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Firefox for Android
Safari on iOS
OnInstalledReason

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Full support
Full support
See implementation notes.

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