1. Mozilla
  2. Add-ons
  3. Browser extensions
  4. JavaScript APIs
  5. windows
  6. windows.WINDOW_ID_NONE

windows.WINDOW_ID_NONE

The windowId value that represents the absence of a browser window.

Browser compatibility

Chrome
Edge
Firefox
Opera
Safari
Firefox for Android
Safari on iOS
WINDOW_ID_NONE
Chrome – Full support
Chrome 6 (Release date: 2010-09-02)
footnote Full support
Edge – Full support
Edge 14 (Release date: 2016-08-02)
footnote Full support
Firefox – Full support
Firefox 45 (Release date: 2016-03-08)
footnote Full support
Opera – Full support
Opera 15 (Release date: 2013-07-02)
footnote Full support
Safari – Full support
Safari 14 (Release date: 2020-09-16)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Safari on iOS – Full support
Safari on iOS 15 (Release date: 2021-09-20)
footnote Full support

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Full support
No support

Note: This API is based on Chromium's chrome.windows API. This documentation is derived from windows.json in the Chromium code.

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