Firefox extension to check for new mail in your Google Mail and Google Apps (Gmail for Domain) accounts. 1. My account keeps being logged out when I open the mailbox or open a message There are 2 probable causes: + You've opened different accounts in the same browser's session, i.e. on different tabs or windows. + You've selected 'Sign out' on Gmail website. Doing either of those will invalidate cookies currently used by the extension for authentication. This is an expected behaviour and not a bug, so there won't be a fix. If you encounter this problem, you need to select 'Log out' of that account on the menu to remove all invalid cookies. You don't need to log out of an account to open the mailbox of another account. Just select 'Open mailbox' in the menu. But make sure that other ac...