Why email notifications (gmail) are still displayed at the top of the screen even if I read emails on any other device (i.e. desktop PC, smartphone)? I need to dismiss them manually by swyping to the right or using a 'dismiss all' icon. I have enabled a synchronization so I thought they will be disappear automatically after reading.
Edit: I've checked it again and it works fine when I mark email as read using Gmail in a web browser so there must be an issue using Thunderbird and Gmail IMAP.