In the most recent version (example: Firefox 63.0.3 on Cosmic) the behaviour is different. Firefox actually blocks the restart/shutdown process by showing a popup "X tabs will be closed". But the whole OS also creates a modal dialog box, asking whether to cancel, reboot or turn off, and the modal dialog boxes actually prevents the user from closing Firefox properly using the Firefox pop-up window. If "reboot" or "turn off" are chosen, Firefox will show the dreaded "Well, This Is Embarrassing" screen.
This is an improvement from the previous versions. However, a proper shutdown sequence should allow the user to close applications properly right after initiating the reboot/shutdown procedure. -- 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/867424 Title: Oneric: On boot up Firefox always displays the “Well, This Is Embarrassing” screen. Status in Mozilla Firefox: Fix Released Status in firefox package in Ubuntu: Triaged Status in thunderbird package in Ubuntu: Triaged Status in firefox source package in Precise: Triaged Status in thunderbird source package in Precise: Triaged Bug description: This happens on every restart or boot. Firefox fails to load previous tabs. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: firefox 7.0.1+build1+nobinonly-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 NonfreeKernelModules: nvidia AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:240: no soundcards found... ApportVersion: 1.23-0ubuntu2 Architecture: amd64 ArecordDevices: arecord: device_list:240: no soundcards found... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: BuildID: 20110929022028 CRDA: Error: [Errno 2] No such file or directory Channel: release Date: Tue Oct 4 13:15:01 2011 ForcedLayersAccel: False IfupdownConfig: auto lo iface lo inet loopback IncompatibleExtensions: NoScript - ID={73a6fe31-595d-460b-a920-fcc0f8843232}, Version=2.1.4rc2, minVersion=1.9a2, maxVersion=1.9.6, Location=app-profile, Type=extension, Active=Yes InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110910) IpRoute: default via 192.168.1.1 dev eth0 proto static 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.4 metric 1 IwConfig: lo no wireless extensions. eth0 no wireless extensions. ProcEnviron: LANGUAGE=en_GB:en LANG=en_GB.UTF-8 SHELL=/bin/bash Profiles: Profile0 (Default) - LastVersion=7.0.1/20110929022028 (Running) RfKill: RunningIncompatibleAddons: True SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) UserJS: general.useragent.vendor - Firefox dmi.bios.date: 01/23/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0304 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M3A78-EH dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0304:bd01/23/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3A78-EH:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/867424/+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
