Here is a screenshot of mine - running with Ambiance. DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS" 4.15.0-45-generic #48-Ubuntu SMP Tue Jan 29 16:28:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
** Attachment added: "screenshot" https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1725588/+attachment/5238910/+files/Screenshot%20from%202019-02-15%2013-47-17.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1725588 Title: [regression] borders around tabs in preferences are invisible Status in thunderbird package in Ubuntu: Confirmed Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1725588/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp