windows.onRemoved
Fired when a window is closed.
Syntax
js
browser.windows.onRemoved.addListener(listener)
browser.windows.onRemoved.removeListener(listener)
browser.windows.onRemoved.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)
-
Checks whether a
listener
is registered for this event. Returnstrue
if it is listening,false
otherwise.
addListener syntax
Parameters
listener
-
The function called when this event occurs. The function is passed this argument:
windowId
-
integer
. ID of the window that was closed.
Browser compatibility
BCD tables only load in the browser
Examples
Log the IDs of windows as they are removed.
js
browser.windows.onRemoved.addListener((windowId) => {
console.log(`Closed window: ${windowId}`);
});
Note: This API is based on Chromium's chrome.windows
API. This documentation is derived from windows.json
in the Chromium code.