Hi Dave: Sure, I'll do my best to provide more info. To be be candid, I'm a little busy right now, so it may be a few days.
In the meantime, I'll just note that some sites seem to cause Firefox to freeze the system more quickly than do other sites. For example, opening only the default start page doesn't seem to cause a crash. However, opening Ubuntu.com, for example, causes a very rapid system freeze with Firefox in 15.04. Also, I've noticed that if I wait long enough (generally more than 10 minutes), the system can sometimes partially unfreeze, but then the desktop background is black, and text in menus and pretty much everywhere else are garbled, leaving the system unusable until reboot. I'll also not that such freezes do NOT occur when using Chrome. Oh, and I'm testing on with fully updated, but otherwise nearly clean installs, of 15.04 and 14.04.2, both running Firefox 37.0.2. (The freezes occurred both before and after installing Chrome in 15.04.) To reiterate, Firefox causes freezes with 15.04, but NOT with 14.04.2. GizmoChicken -- 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/1432492 Title: Firefox and Thunderbird freezes entire system after a few seconds of use Status in The Mozilla Firefox Browser: New Status in firefox package in Ubuntu: Incomplete Bug description: Description: Ubuntu Vivid Vervet (development branch) Release: 15.04 firefox: Installed: 36.0.1+build2-0ubuntu1 Candidate: 36.0.1+build2-0ubuntu1 Version table: *** 36.0.1+build2-0ubuntu1 0 500 http://mirrors.accretive-networks.net/ubuntu/ vivid/main amd64 Packages 100 /var/lib/dpkg/status The whole system freezes after opening firefox. Hard reset required. Related bug: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1432488 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: firefox 36.0.1+build2-0ubuntu1 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.16.2-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: black 1959 F.... pulseaudio /dev/snd/controlC0: black 1959 F.... pulseaudio BuildID: 20150306140302 Channel: Unavailable CurrentDesktop: Unity Date: Sun Mar 15 22:01:45 2015 EcryptfsInUse: Yes 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 2014-04-21 (329 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) IpRoute: default via 192.168.1.1 dev eth0 proto static metric 1024 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.100 IwConfig: eth0 no wireless extensions. eth1 no wireless extensions. lo no wireless extensions. Locales: extensions.sqlite corrupt or missing MostRecentCrashID: bp-d89e64a8-90ce-4922-add5-6cfba2140512 PrefSources: prefs.js [Profile]/extensions/https-everywh...@eff.org/defaults/preferences/preferences.js [Profile]/extensions/{0AA9101C-D3C1-4129-A9B7-D778C6A17F82}/defaults/preferences/rikaichan.js Profiles: Profile0 (Default) - LastVersion=36.0.1/20150306140302 RelatedPackageVersions: google-talkplugin 5.38.5.0-1 rhythmbox-mozilla 3.1-1ubuntu2 RfKill: RunningIncompatibleAddons: False SourcePackage: firefox SubmittedCrashIDs: bp-d89e64a8-90ce-4922-add5-6cfba2140512 Themes: extensions.sqlite corrupt or missing UpgradeStatus: Upgraded to vivid on 2015-03-16 (0 days ago) dmi.bios.date: 05/19/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1605 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P6T DELUXE 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.:bvr1605:bd05/19/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6TDELUXE:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer no_proxy: localhost,127.0.0.0/8,::1 To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1432492/+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
