I also experience issue 2. (on bionic) of this bug: even though messages are read and correctly marked as read in Thunderbird window, the red notification on Thunderbird dock icon is not updated.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1759158 Title: Improve Thunderbird notifications for Gnome Shell To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1759158/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs