Closes a window and all the tabs inside it, given the window's ID.

This is an asynchronous function that returns a Promise.


var removing =
  windowId        // integer


integer. ID of the window to close.

Return value

A Promise that will be fulfilled with no arguments when the window has been closed. If any error occurs, the promise will be rejected with an error message.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaSafariFirefox for Android
removeChrome Full support YesEdge Full support 79Firefox Full support 45Opera Full support YesSafari Full support 14Firefox Android No support No


Full support  
Full support
No support  
No support


When the user clicks a browser action's icon, close the window in which the icon was clicked:

function onRemoved() {
  console.log(`Removed window`);

function onError(error) {
  console.error(`Error:`, error);

browser.browserAction.onClicked.addListener((tab) => {

  var removing =;
  removing.then(onRemoved, onError);


Close the current, e.g. popup, window when the user clicks a button on the page:

// in a script loaded by the page in the window
document.querySelector('#close').addEventListener(async ({ button, }) => { try {
  if (button) return; // not a left click
  const windowId = (await;
  // this point will never be reached, since the window is gone
} catch (error) { console.error('Closing failed:', error); } });

In Firefox, the same could be acheived with the .allowScriptsToClose window creation property and window.close().

Example extensions


This API is based on Chromium's 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.