action.onUserSettingsChanged

Syntax

browser.action.onUserSettingsChanged.addListener(listener)
browser.action.onUserSettingsChanged.removeListener(listener)
browser.action.onUserSettingsChanged.hasListener(listener)

Events have three functions:

addListener(listener)

Adds a listener to this event.

removeListener(listener)

Stop listening to this event. The listener argument is the listener to remove.

hasListener(listener)

Check whether listener is registered for this event. Returns true if it is listening, false otherwise.

addListener syntax

Parameters

listener

The function called when this event occurs. The function is passed these arguments:

change

'object'. Details of the changed user-specified settings.

isOnToolbar

boolean. Whether the extension's action icon is visible on the top-level toolbar of the browser windows (i.e., whether the extension has been 'pinned' by the user).

Browser compatibility