After recent update massive system load when using firefox

[Chris]

I don't know if this is being caused by plugin-container or not, but I updated performed Ubuntu updates yesterday (including Firefox 11.0) and today anytime I use firefox system load increases massively.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: firefox 11.0+build1-0ubuntu0.10.10.2
ProcVersionSignature: Ubuntu 2.6.35-32.67-generic-pae 2.6.35.14
Uname: Linux 2.6.35-32-generic-pae i686
NonfreeKernelModules: nvidia
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: VT1708B Analog [VT1708B Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: chris 2196 F.... pulseaudio
BuildID: 20120310193444
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfbffc000 irq 43'
   Mixer name : 'VIA VT1708B 8-Ch'
   Components : 'HDA:1106e721,104382ea,00100100'
   Controls : 35
   Simple ctrls : 19
Channel: release
Date: Fri Apr 6 12:33:01 2012
EtcFirefoxSyspref: Cannot parse /etc/firefox/syspref.js - [Errno 2] No such file or directory: '/etc/firefox/syspref.js'
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Ubuntu Firefox Modifications - <email address hidden>, Version=0.9.4, minVersion=4.0b6, maxVersion=10.*, Location=app-system-share, Type=extension, Active=Yes
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
IpRoute:
 192.168.100.0/24 dev eth0 proto kernel scope link src 192.168.100.136 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
 default via 192.168.100.1 dev eth0 proto static
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.

 vboxnet0 no wireless extensions.
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=11.0/20120310193444 (Running)
RfKill:

RunningIncompatibleAddons: True
SourcePackage: firefox
dmi.bios.date: 03/11/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0606
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5KPL-CM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.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.:bvr0606:bd03/11/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5KPL-CM:rvrx.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.