What is the last version that still worked fine? ** Summary changed:
- Thunderbird: tab borders Preferences > Security missing + [regression] borders around tabs in preferences are invisible ** Tags added: regression-release ** Changed in: thunderbird (Ubuntu) Importance: Undecided => Critical -- 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: [regression] borders around tabs in preferences are invisible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1725588/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs