[Bug 1199703] [NEW] firefox 22 performs slowly intermittently

[arsola]

Public bug reported:

I am currently running Ubuntu 13.04 and today I updated to firefox 22.
Afterwards, the firefox process would jump between ~5% and 99%. Often it
would gray out and then return. When trying to perform any sort of
action (select an item from a firefox drop-down menu), try to navigate
to a web site or search google using the search bar, there would be a
delay of a few seconds before I would see the menu or see the cursor in
the location bar or search bar. I verified that network.dns.disableIPV6
was set to true and turned off hardware acceleration, but the
performance problems did not go away. I logged out and logged back in
but that didn't help either. I eventually downgraded to firefox 20 and
firefox performed as expected.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: firefox 22.0+build2-0ubuntu0.13.04.2
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic x86_64
NonfreeKernelModules: wl
AddonCompatCheckDisabled: False
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ubergic    4262 F.... pulseaudio
BuildID: 20130627161625
Channel: Unavailable
Date: Wed Jul 10 19:29:57 2013
DefaultProfilePrefSources:
 prefs.js
 [Profile]/extensions/{2fa4ed95-0317-4c6a-a74c-5f3e3912c1f9}/defaults/preferences/ybookmarks.js
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
 # iface eth1 inet dhcp
 #	wireless-essid nancyblue
 #	wireless-mode Managed
InstallationDate: Installed on 2011-07-23 (717 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
IpRoute:
 default via 10.1.1.1 dev eth1  proto static 
 10.1.1.0/24 dev eth1  proto kernel  scope link  src 10.1.1.91  metric 9 
 169.254.0.0/16 dev eth1  scope link  metric 1000 
 172.16.162.0/24 dev vmnet1  proto kernel  scope link  src 172.16.162.1 
 192.168.12.0/24 dev vmnet8  proto kernel  scope link  src 192.168.12.1
MarkForUpload: True
Profile1PrefSources: prefs.js
Profiles:
 Profile0 (Default) - LastVersion=20.0/20130417085609 (Out of date)
 Profile1 - LastVersion=20.0/20130329030352 (Out of date)
RelatedPackageVersions:
 gnome-shell       3.6.3.1-0ubuntu6
 totem-mozilla     3.6.3-0ubuntu6
 rhythmbox-mozilla 2.98-0ubuntu5
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to raring on 2013-04-29 (71 days ago)
dmi.bios.date: 10/16/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A16
dmi.board.name: 0U990C
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA16:bd10/16/2008:svnDellInc.:pnInspiron1525:pvr:rvnDellInc.:rn0U990C:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1525
dmi.sys.vendor: Dell Inc.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug raring

-- 
You received this bug notification because you are a member of Mozilla
Bugs, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1199703

Title:
  firefox 22 performs slowly intermittently

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1199703/+subscriptions