Can you open a terminal, type "firefox --safe-mode" followed by Enter, and let us know whether the application starts? If not, what is displayed in the terminal window?
** Summary changed: - foxfire will not start + firefox will not start after it crashed unexpectedly ** Changed in: firefox (Ubuntu) Status: New => Incomplete -- 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 firefox package in Ubuntu: Incomplete 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/ubuntu/+source/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