Just hit this. You can find the location in localstore.rdf where sizemode="fullscreen", and set it back to "normal", which (other than deleting the file entirely) seems to be the only way to address this in thunderbird.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/196058 Title: Thunderbird starts in a full-screen mode and cannot be restored To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/196058/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs