We are sorry that we do not always have the capacity to review all reported bugs in a timely manner. You reported this bug some time ago and there have been many changes in Ubuntu and Firefox since that time.
Do you still see a problem related to the one that you reported in a currently supported version of Ubuntu? Please let us know if you do and in which version of Ubuntu otherwise this report can be left to expire in approximately 60 days time. Thank you for helping make Ubuntu better. Paul White [Ubuntu Bug Squad] ** Changed in: firefox (Ubuntu) Status: Confirmed => 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/1278391 Title: Very heavy CPU usage for Facebook in Firefox Status in firefox package in Ubuntu: Incomplete Bug description: When a tab with the Facebook home page is active in Firefox, Firefox's CPU usage shoots through the roof. It had been very bad for a while, but recently it has got worse, now sticking at almost a constant 100% on one core (of a 1.5GHz Core2Duo), as opposed to around 5-20% when the page is backgrounded or closed. I cannot reproduce this problem in Opera. I have also read reports on forums that say this problem does not occur in Chrome. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: firefox 26.0+build2-0ubuntu0.13.10.2 ProcVersionSignature: Ubuntu 3.11.0-15.8-lowlatency 3.11.10 Uname: Linux 3.11.0-15-lowlatency x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 BuildID: 20131206145143 Channel: Unavailable Date: Mon Feb 10 11:44:41 2014 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 2013-08-22 (171 days ago) InstallationMedia: Ubuntu-Studio 13.04 "Raring Ringtail" - Release amd64 (20130424) IpRoute: default via 192.168.1.1 dev eth0 proto static 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.100 metric 1 Locales: extensions.sqlite corrupt or missing MarkForUpload: True Profiles: Profile0 (Default) - LastVersion=26.0/20131206145143 (In use) RelatedPackageVersions: gnome-shell 3.8.4-0ubuntu5 browser-plugin-vlc 2.0.6-2 totem-mozilla 3.8.2-0ubuntu1 rhythmbox-mozilla 2.99.1-0ubuntu1 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: Upgraded to saucy on 2013-10-20 (112 days ago) WifiSyslog: Feb 10 11:41:32 ermintrude kernel: [370333.201415] usb 2-1.3: USB disconnect, device number 20 dmi.bios.date: 06/28/2007 dmi.bios.vendor: LENOVO dmi.bios.version: 7OET24WW (1.03 ) dmi.board.name: 8932A11 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr7OET24WW(1.03):bd06/28/2007:svnLENOVO:pn8932A11:pvrThinkPadR61/R61i:rvnLENOVO:rn8932A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 8932A11 dmi.product.version: ThinkPad R61/R61i dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1278391/+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