You have been subscribed to a public bug:
Firefox regularly eats up 100% or 200% CPU usage while just gmail and
google calendar pages are opened.
Shutting down firefox does not really shut it down, only the window
disappears, the processes that eat CPU stay, so restarting firefox does
not work until I manually kill these processes.
While they show up as "firefox" in $ top, I now managed to activate the
"thread view" where these processes show up as "mpegaudioparse0" and
"mpegaudioparse1" processes.
Actually this might not be a bug in firefox but in one of the
extensions, e.g., flashplugin, but I am not sure. Firefox should kill
these harshly when exiting, so that restarting firefox is a possible
solution to CPU-eating buggy plugins and extensions.
I am using ubuntu 12.4.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: firefox 28.0+build2-0ubuntu0.12.04.1
ProcVersionSignature: Ubuntu 3.11.0-19.33~precise1-generic 3.11.10.5
Uname: Linux 3.11.0-19-generic x86_64
NonfreeKernelModules: nvidia
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k3.11.0-19-generic.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: 92HD90BXX Analog [92HD90BXX Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: ps 2607 F.... pulseaudio
/dev/snd/controlC0: ps 2607 F.... pulseaudio
BuildID: 20140317233623
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xe6760000 irq 46'
Mixer name : 'IDT 92HD90BXX'
Components : 'HDA:111d76e7,10280494,00100102'
Controls : 28
Simple ctrls : 13
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xe5080000 irq 17'
Mixer name : 'Nvidia GPU 1c HDMI/DP'
Components : 'HDA:10de001c,10280494,00100100'
Controls : 21
Simple ctrls : 3
Channel: Unavailable
Date: Tue Apr 8 14:25:11 2014
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini
or extensions.sqlite)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
IpRoute:
default via 193.255.160.1 dev eth0 proto static
169.254.0.0/16 dev eth0 scope link metric 1000
193.255.160.0/23 dev eth0 proto kernel scope link src 193.255.160.48
metric 1
Locales: extensions.sqlite corrupt or missing
MarkForUpload: True
MostRecentCrashID: bp-e838124b-7e27-4001-bba3-7c4442140319
PrefSources:
prefs.js
[Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js
Profiles: Profile0 (Default) - LastVersion=28.0/20140317233623 (In use)
RelatedPackageVersions:
google-talkplugin 5.2.4.0-1
icedtea-7-plugin 1.2.3-0ubuntu0.12.04.4
rhythmbox-mozilla 2.96-0ubuntu4.3
totem-mozilla 3.0.1-0ubuntu21.1
gnome-shell 3.4.1-0ubuntu2
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/18/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0692FT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA08:bd10/18/2011:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0692FT:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6520
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
** Affects: totem (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug precise third-party-packages
--
firefox 200% CPU usage while idle/shutdown: mpegaudioparse0 and mpegaudioparse1
processes
https://bugs.launchpad.net/bugs/1304351
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