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Fired when a window is closed.

Syntax

browser.windows.onRemoved.addListener(listener)
browser.windows.onRemoved.removeListener(listener)
browser.windows.onRemoved.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

callback

Function that will be called when this event occurs. The function will be passed the following arguments:

windowId
integer. ID of the window that was closed.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxOperaFirefox for Android
onRemovedChrome Full support YesEdge No support NoFirefox Full support 45Opera Full support YesFirefox Android No support No

Legend

Full support  
Full support
No support  
No support

Examples

Log the IDs of windows as they are removed.

browser.windows.onRemoved.addListener((windowId) => {
  console.log("Closed window: " + windowId);
});
Acknowledgements

This API is based on Chromium's chrome.windows API. This documentation is derived from windows.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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