management.onUninstalled()

Fired when an add-on is uninstalled.

This API requires the "management" API permission.

Syntax

browser.management.onUninstalled.addListener(listener)
browser.management.onUninstalled.removeListener(listener)
browser.management.onUninstalled.hasListener(listener)

Events have three functions:

addListener(callback)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The listener argument is the listener to remove.
hasListener(listener)
Checks whether a listener is registered for this event. Returns true if it is listening, false otherwise.

addListener syntax

Parameters

function

Callback function that will be called when this event occurs. The function will be passed the following argument:

info
ExtensionInfo: info about the add-on that was uninstalled.

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
onUninstalled
Yes
79
55
["Before version 56, only extensions whose type is 'theme' are supported.", "This event is not emitted when the extension is in the \"pending uninstall\" state. The event is emitted as expected once the extension is completely removed (for example, when the about:addons tab is closed)."]
?
Yes
No
?
?
55
["Before version 56, only extensions whose type is 'theme' are supported.", "This event is not emitted when the extension is in the \"pending uninstall\" state. The event is emitted as expected once the extension is completely removed (for example, when the about:addons tab is closed)."]
?
?
?

Examples

Log the names of add-ons when they are uninstalled:

browser.management.onUninstalled.addListener((info) => {
  console.log(info.name + " was uninstalled");
});

Note: 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.

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/management/onUninstalled