I have this problem, in 2018, with Thunderbird 60.2.1 on Linux Mint. Recreating localstore.rdf did not help.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1265898 Title: thunderbird doesn't remember maximized window state in Ubuntu Gnome To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1265898/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs