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[Jesse Michael <892901@xxxxxxxxxxxxxxxxxx>]

I haven't run into this when suspending, but often when closing tabs,
firefox will go unresponsive and grey out for a while before eventually
coming back.

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https://bugs.launchpad.net/bugs/892901

Title:
  Firefox freezes periodically for no apparent reason

Status in “firefox” package in Ubuntu:
  Confirmed

Bug description:
  Firefox keeps randomly freezing periodically for no apparent reason.

  It can happen as often as every few minutes, or as infrequent as every
  couple of hours. It also freezes often when the computer is started
  again from being suspended. It usually comes good after some time, but
  it's quite frustrating and makes it hard to get stuff done.

  The closest step I can suggest for reproducing it is to suspend your
  computer with Firefox open. That often causes the freezes.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: firefox 7.0.1+build1+nobinonly-0ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
  Uname: Linux 3.0.0-13-generic x86_64
  AddonCompatCheckDisabled: False
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  valorin    2902 F.... pulseaudio
  BuildID: 20111008085652
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf0900000 irq 44'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:10ec0269,17aa21de,00100100 HDA:80862805,80860101,00100000'
     Controls      : 24
     Simple ctrls  : 11
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 8GHT22WW-1.040000'
     Mixer name	: 'ThinkPad EC 8GHT22WW-1.040000'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Channel: release
  CheckboxSubmission: d98e517e10fca0c16089cb8e9d3fc2f7
  CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
  Date: Mon Nov 21 10:03:33 2011
  EcryptfsInUse: Yes
  ForcedLayersAccel: False
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  IpRoute:
   default via 172.20.14.254 dev eth0  proto static 
   169.254.0.0/16 dev eth0  scope link  metric 1000 
   172.20.14.0/24 dev eth0  proto kernel  scope link  src 172.20.14.12  metric 1
  Profiles: Profile0 (Default) - LastVersion=7.0.1/20111008085652 (Running)
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/07/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8GET33WW (1.10 )
  dmi.board.name: 7859CTO
  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:bvr8GET33WW(1.10):bd06/07/2011:svnLENOVO:pn7859CTO:pvrThinkPadL520:rvnLENOVO:rn7859CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7859CTO
  dmi.product.version: ThinkPad L520
  dmi.sys.vendor: LENOVO

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