The ID of the extension.


let myAddonId =;


A string representing the add-on ID. If the extension specifies an ID in its browser_specific_settings manifest.json key, contains that value. Otherwise, contains the ID that was generated for the extension.

Browser compatibility

BCD tables only load in the browser

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