Same behaviour on Kubuntu 17.10. Was working fine a couple of days ago so it's something with an update in the past couple days.
-- 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/1721242 Title: Thunderbird UI-Glitches Status in thunderbird package in Ubuntu: Confirmed Bug description: Well, the attached .webm shows the Problem in action. The UI reveals it self only if you hover over the elements. Its since the todays update to 52.4 52.3 just works fine. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: thunderbird 1:52.4.0+build1-0ubuntu1 ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3 Uname: Linux 4.13.0-12-generic x86_64 NonfreeKernelModules: zfs zunicode zavl zcommon znvpair AddonCompatCheckDisabled: False ApportVersion: 2.20.7-0ubuntu2 Architecture: amd64 BuildID: 20171003222123 Channel: Unavailable CurrentDesktop: ubuntu:GNOME Date: Wed Oct 4 14:25:34 2017 Extensions: extensions.sqlite corrupt or missing ForcedLayersAccel: False IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) InstallationDate: Installed on 2017-09-19 (14 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170917) IwConfig: enp0s31f6 no wireless extensions. lo no wireless extensions. Locales: extensions.sqlite corrupt or missing PrefSources: prefs.js [Profile]/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/defaults/preferences/lightning.js [Profile]/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/defaults/preferences/lightning-l10n.js Profiles: Profile0 (Default) - LastVersion=52.3.0/20170815040357 (Out of date) RfKill: RunningIncompatibleAddons: False SourcePackage: thunderbird Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/26/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.8 dmi.board.name: 0Y7WYT dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.8:bd01/26/2016:svnDellInc.:pnOptiPlex7040:pvr:rvnDellInc.:rn0Y7WYT:rvrA00:cvnDellInc.:ct3:cvr: dmi.product.name: OptiPlex 7040 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1721242/+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
