The ID of the extension.


var myAddonId =;


A string representing the add-on ID. If the extension specified an ID in its applications manifest.json key, will contain that value. Otherwise, will contain the ID that was generated for the extension.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic support2214454815


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

Document Tags and Contributors

Contributors to this page: wbamberg, serv-inc, andrewtruongmoz, Makyen, chrisdavidmills
Last updated by: wbamberg,