Public bug reported: Today a Firefox update was pushed out for 21.04. Not sure if this problem occurred with the update or before, but I just noticed it after the update.
Using the Firefox hamburger menu, then selecting Customize toolbar... I arrive at a tab titled Customize Firefox. In the lower left corner of the screen is a checkbox for Titlebar. If that checkbox is checked, the titlebar appears at the top of the window, and below it are all the tabs. If that checkbox is NOT checked, the titlebar remains visible but now the window controls are duplicated on the tabs line (in my case to the left as I have the window control position set to the left). In previous versions of Firefox, it was nice to be able to turn off the titlebar and have the controls move to the tabs line. And in any case, two sets of active window controls, one beneath the other, is not particularly useful. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: firefox 87.0+build3-0ubuntu4 ProcVersionSignature: Ubuntu 5.11.0-14.15-generic 5.11.12 Uname: Linux 5.11.0-14-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia AddonCompatCheckDisabled: False ApportVersion: 2.20.11-0ubuntu64 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: clh 1415 F.... pulseaudio /dev/snd/controlC0: clh 1415 F.... pulseaudio BuildID: 20210318103112 CasperMD5CheckResult: pass Channel: Unavailable CurrentDesktop: ubuntu:GNOME Date: Wed Apr 14 15:30:39 2021 ForcedLayersAccel: False InstallationDate: Installed on 2021-04-10 (4 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Beta amd64 (20210408) IpRoute: default via 192.168.1.254 dev enp5s0 proto dhcp metric 100 169.254.0.0/16 dev enp5s0 scope link metric 1000 192.168.1.0/24 dev enp5s0 proto kernel scope link src 192.168.1.13 metric 100 MostRecentCrashID: bp-61d2fae9-da3a-417f-9fe1-917de0180212 PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:352 PrefSources: prefs.js Profiles: Profile0 (Default) - LastVersion=87.0/20210318103112 (In use) RunningIncompatibleAddons: True SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/06/2020 dmi.bios.release: 5.14 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F12e dmi.board.asset.tag: Default string dmi.board.name: X570 AORUS PRO WIFI dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF12e:bd03/06/2020:br5.14:svnGigabyteTechnologyCo.,Ltd.:pnX570AORUSPROWIFI:pvr-CF:rvnGigabyteTechnologyCo.,Ltd.:rnX570AORUSPROWIFI:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: X570 AORUS PRO WIFI dmi.product.sku: Default string dmi.product.version: -CF dmi.sys.vendor: Gigabyte Technology Co., Ltd. ** Affects: firefox (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug hirsute -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1924186 Title: firefox title bar cannot be turned off in 21.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1924186/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs