Tips

Get extensions' code

Default maybe Profile 1 / ...

Chrome

macOS

$ cd ~/Library/Application\ Support/Google/Chrome/Default/Extensions/

Arc

macOS

$ cd ~/Library/Application\ Support/Arc/User\ Data/Default/Extensions/

Background auto-idle

The extension service worker lifecycle > Idle and shutdown

The background will idle after 30 seconds of inactivity. Opening the DevTools of the background service worker prevents it from going idle. To view the background's console output without disrupting energy-saving, go to chrome://serviceworker-internals/.