Your service worker must be part of the extension package. For security reasons Manifest V3 does not support remotely-hosted code. You cannot get around this by loading your extension from a server. To update the service worker, publish a new version of your extension to the Chrome Web Store. importScripts ( 'locales.js' ) # Updating Warning: Turning off auto-updates should be done with caution. Auto-updated provide fixes to sometimes critical issues, limiting exposure. The auto-updating procedure is performed by Google Update, which is based on the open-source Omaha project. Use importScripts() as you would in a web service worker. Google Chrome on Windows and Mac auto-updates itself on a regular basis. Service workers in web pages or web apps register service workers by first feature-detecting for serviceWorker in navigator then calling register() inside feature detection. Use the 'service_worker' key, which specifies a single JavaScript file. To register an extension service worker, specify it in the 'background' field of the manifest.json file. The installer program for Chrome downloads to your designated Downloads folder. The site detects that youre using a Mac and automatically suggests the right version for you. Extension service workers are installed and updated differently from web service workers. Go to the download page for Chrome on the Mac you want to install it on.

Updating chrome on mac