permissions.onRemoved
Fired when some permissions are removed from the extension.
In this article
Syntax
js
browser.permissions.onRemoved.addListener(listener)browser.permissions.onRemoved.removeListener(listener)browser.permissions.onRemoved.hasListener(listener)Events have three functions:
addListener(listener)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
listenerThe function called when this event occurs. The function is passed this argument:
permissionspermissions.Permissionsobject containing the permissions that were removed.
Examples
js
function handleRemoved(permissions) { console.log(`Removed API permissions: ${permissions.permissions}`); console.log(`Removed host permissions: ${permissions.origins}`);}browser.permissions.onRemoved.addListener(handleRemoved);Example extensions
Browser compatibility
Note:This API is based on Chromium'schrome.permissions API.