Fired when some permissions are removed from the extension.
Syntax
browser.permissions.onRemoved.addListener(listener) browser.permissions.onRemoved.removeListener(listener) browser.permissions.onRemoved.hasListener(listener)
Events have three functions:
- addListener(callback)
- Adds a listener to this event.
- removeListener(listener)
- Stop listening to this event. The listenerargument is the listener to remove.
- hasListener(listener)
- Check whether listeneris registered for this event. Returnstrueif it is listening,falseotherwise.
addListener syntax
Parameters
- callback
- 
 Function that will be called when this event occurs. The function will be passed the following arguments: - permissions
- permissions.Permissionsobject containing the permissions that were removed.
 
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Chrome | Edge | Firefox | Firefox for Android | Opera | |
|---|---|---|---|---|---|
| Basic support | Yes | No | No | No | Yes | 
Examples
function handleRemoved(permissions) {
  console.log(`Removed API permissions: ${permissions.permissions}`);
  console.log(`Removed host permissions: ${permissions.origins}`);
}
browser.permissions.onRemoved.addListener(handleRemoved);
Acknowledgements
              This API is based on Chromium's chrome.permissions API.
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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                       Contributors to this page: 
        andrewtruongmoz, 
        wbamberg
                    
                    
                       Last updated by:
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