tabs.TAB_ID_NONE

A special ID value given to tabs that are not browser tabs (for example, tabs in devtools windows).

Its value is -1.

Browser compatibility

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desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Firefox for Android
Safari on iOS
TAB_ID_NONE

Legend

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Full support
Full support

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