Public bug reported: Potentially related with [1].
Reproducible in TB 1:52.4.0+build1-0ubuntu2 with default theme for both TB and Ubuntu. Screenshot attached. [1] https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1721189 ** Affects: thunderbird (Ubuntu) Importance: Undecided Status: New ** Attachment added: "missing tab borders.png" https://bugs.launchpad.net/bugs/1725588/+attachment/4981185/+files/missing%20tab%20borders.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1725588 Title: Thunderbird: tab borders Preferences > Security missing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1725588/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
