This was also reported in Ubuntu (https://launchpad.net/bugs/1917191), by only 2 different users so far since the update to 86.0 was pushed to all supported Ubuntu releases. According to comment 7, this affects only users with an invalid color profile on Linux, which presumably/hopefully isn't such a large number of users.
I'm okay with distro-patching (the patch is trivial enough), but then why isn't the change being uplifted to the 86 branch? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1917191 Title: firefox will not start after it crashed unexpectedly Status in Mozilla Firefox: Fix Released Status in firefox package in Ubuntu: Confirmed Bug description: firefox crashed unexpectedly, and it will not start or restart. I am running the latest ubuntu-20.04.2 LTS, all updates applied. firefox 86.0+build3 --- ProblemType: Bug AddonCompatCheckDisabled: False ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: johnfg 1725 F.... pulseaudio /dev/snd/controlC1: johnfg 1725 F.... pulseaudio BuildID: 20210222142601 CasperMD5CheckResult: skip Channel: Unavailable CurrentDesktop: ubuntu:GNOME DefaultProfileExtensions: extensions.sqlite corrupt or missing DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) DefaultProfileLocales: extensions.sqlite corrupt or missing DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:348 DefaultProfilePrefSources: prefs.js DefaultProfileThemes: extensions.sqlite corrupt or missing DistroRelease: Ubuntu 20.04 ForcedLayersAccel: False InstallationDate: Installed on 2020-02-22 (371 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) IpRoute: default via 192.168.1.1 dev wlp10s0 proto dhcp metric 600 10.8.0.0/24 via 10.8.0.17 dev tun0 10.8.0.17 dev tun0 proto kernel scope link src 10.8.0.18 169.254.0.0/16 dev wlp10s0 scope link metric 1000 192.168.1.0/24 dev wlp10s0 proto kernel scope link src 192.168.1.8 metric 600 NonfreeKernelModules: openafs Package: firefox 86.0+build3-0ubuntu0.20.04.1 PackageArchitecture: amd64 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 5.4.0-66.74-generic 5.4.86 Profile0Extensions: extensions.sqlite corrupt or missing Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile0Locales: extensions.sqlite corrupt or missing Profile0PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:348 Profile0PrefSources: prefs.js Profile0Themes: extensions.sqlite corrupt or missing Profiles: Profile1 (Default) - LastVersion=80.0/20200818235255 (Out of date) Profile0 - LastVersion=86.0/20210222142601 RunningIncompatibleAddons: False Tags: focal Uname: Linux 5.4.0-66-generic x86_64 UpgradeStatus: Upgraded to focal on 2020-04-24 (309 days ago) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 07/05/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V4.00L12 dmi.board.asset.tag: No Asset Tag dmi.board.name: CF52-4 dmi.board.vendor: Panasonic Corporation dmi.board.version: 1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Panasonic Corporation dmi.chassis.version: 001 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV4.00L12:bd07/05/2011:svnPanasonicCorporation:pnCF-52SLGDD1M:pvr004:rvnPanasonicCorporation:rnCF52-4:rvr1:cvnPanasonicCorporation:ct10:cvr001: dmi.product.family: CF52-4 dmi.product.name: CF-52SLGDD1M dmi.product.sku: CF-52SLGDD1M dmi.product.version: 004 dmi.sys.vendor: Panasonic Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1917191/+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