Im sorry, my fault. I did not realize, that thuderbird does not even have own tray icon. I managed it via thunderbird plugin, and there is a bug in this plugin having this behaviour. Thanks
-- thunderbird sometimes does not apper after click on panel icon https://bugs.launchpad.net/bugs/494601 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
