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[ledom <915193@xxxxxxxxxxxxxxxxxx>]

Full uninstall and reinstall (copying profile files) seems to solve this
issue.

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https://bugs.launchpad.net/bugs/915193

Title:
  Important lag (latency) using firefox9

Status in “firefox” package in Ubuntu:
  New

Bug description:
  Firefox8 was fine, no problems.

  Since update to firefox9, I have important latency when:
  - chosing another tab
  - entering text into forms fields (like this one)
  - scrolling page (even with smooth scrolling)

  I tested with or without extensions, same issue.

  The browser is usable but not very comfortable to use because this
  latency.

  Reverting to firefox7 solve the problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: firefox 9.0.1+build1-0ubuntu0.11.10.2
  ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
  Uname: Linux 3.0.0-14-generic i686
  AddonCompatCheckDisabled: True
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ledom      1810 F.... pulseaudio
  BuildID: 20111228084953
  CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfe020000 irq 49'
     Mixer name	: 'Analog Devices AD1984'
     Components	: 'HDA:11d41984,17aa20d7,00100400'
     Controls      : 31
     Simple ctrls  : 19
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7KHT22WW-1.06'
     Mixer name	: 'ThinkPad EC 7KHT22WW-1.06'
     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
  Date: Thu Jan 12 09:20:38 2012
  EcryptfsInUse: Yes
  ForcedLayersAccel: False
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  IncompatibleExtensions: Firebug - ID=firebug@xxxxxxxxxxxxxxxxxxxxxx, Version=1.7.3, minVersion=1.9.2, maxVersion=2.2.0.*, Location=app-profile, Type=extension, Active=Yes
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  IpRoute:
   default via 192.168.1.1 dev wlan0  proto static 
   169.254.0.0/16 dev wlan0  scope link  metric 1000 
   192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.2  metric 2
  ProcEnviron:
   PATH=(custom, no user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  Profiles: Profile0 (Default) - LastVersion=9.0.1/20111228084953 (Running)
  RunningIncompatibleAddons: True
  SourcePackage: firefox
  UpgradeStatus: Upgraded to oneiric on 2011-11-11 (62 days ago)
  UserJS:
   network.protocol-handler.external.picasa - true
   network.protocol-handler.app.picasa - /usr/bin/picasa
  WifiSyslog:
   
  dmi.bios.date: 08/22/2007
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LET51WW (1.21 )
  dmi.board.name: 765912G
  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:bvr7LET51WW(1.21):bd08/22/2007:svnLENOVO:pn765912G:pvrThinkPadT61:rvnLENOVO:rn765912G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 765912G
  dmi.product.version: ThinkPad T61
  dmi.sys.vendor: LENOVO

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