question: About ExpressVPN Keys browser extension permissions
answer: 
  When you install the ExpressVPN Keys browser extension, it requires certain permissions to work as designed. Learn what those permissions are and what each of them is used for.
  
  PERMISSIONS	USAGE
  Alarms	Used to sync latest password manager data on a regular basis.
  Idle	Used to lock the password vault after a period of time if Chrome is not being used.
  NativeMessaging	Used to securely communicate with the ExpressVPN desktop app.
  Privacy	Used to set the default password manager and know whether ExpressVPN Password Manager is the default one.
  Storage	Used to store configuration files for the password manager.
  WebNavigation	Used to enable secure auto-fill functionality in iFrames.
  WebRequest	Used to enable HTTP Basic Auth support.
  Tabs	Used to communicate securely with the tab to allow the user to select a login to auto-fill within the current tab, and to get the tab URL.