[Bug 1035305] [NEW] Crash when switching apps back to Firefox (may be Firebug related)

[Stuart Langridge]

Public bug reported:

When switching apps (with alt-tab, or clicking the Launcher) *to*
Firefox, Firefox crashes.

This does not occur for a while after reboot. However, once the first
crash has happened, a restarted Firefox will reliably continue to crash
every time it is switched *to*. So, starting Firefox works; restoring
the previous session works; navigating around, choosing different tabs,
adding new tabs works. Switching away from Firefox works. However,
switching back to Firefox causes it to crash every time.

A reboot cures the problem (until it starts again).

Crash report sent to Mozilla (about a zillion times) and should be
therefore attached to this bug by apport, but if not: https://crash-
stats.mozilla.com/report/index/bp-dbbaef36-287e-4e2b-85bd-4ef8e2120810

Disabling Firebug seems to have cured the problem.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: firefox 15.0~b2+build1-0ubuntu0.12.04.1~mfn1
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  aquarius   2505 F.... pulseaudio
BuildID: 20120726160848
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf7e00000 irq 49'
   Mixer name	: 'Intel CougarPoint HDMI'
   Components	: 'HDA:14f1506e,17aa5003,00100000 HDA:80862805,17aa5003,00100000'
   Controls      : 25
   Simple ctrls  : 12
Channel: Unavailable
CheckboxSubmission: 4d186c1dd89d3ba4cb89f5ee55713686
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
Date: Fri Aug 10 14:13:22 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111211)
IpRoute:
 default via 192.168.1.1 dev wlan0  proto static 
 10.0.3.0/24 dev lxcbr0  proto kernel  scope link  src 10.0.3.1 
 169.254.0.0/16 dev wlan0  scope link  metric 1000 
 192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.153  metric 2 
 192.168.122.0/24 dev virbr0  proto kernel  scope link  src 192.168.122.1
MostRecentCrashID: bp-dbbaef36-287e-4e2b-85bd-4ef8e2120810
PrefErrors: Unexpected character 'g' before close parenthesis @ [Profile]/extensions/{e4a8a97b-f2ed-450b-b12d-ee082ba24781}/defaults/preferences/greasemonkey.js:4
PrefSources: prefs.js
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=15.0/20120726160848 (In use)
RelatedPackageVersions:
 google-talkplugin 3.2.4.0-1
 rhythmbox-mozilla 2.96-0ubuntu4.1
 totem-mozilla     3.0.1-0ubuntu21
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/21/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 56CN38WW
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: U300s
dmi.board.vendor: LENOVO
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad U300s
dmi.modalias: dmi:bvnLENOVO:bvr56CN38WW:bd11/21/2011:svnLENOVO:pn1080:pvrLenovoIdeaPadU300s:rvnLENOVO:rnU300s:rvr1.0:cvnLENOVO:ct10:cvrLenovoIdeaPadU300s:
dmi.product.name: 1080
dmi.product.version: Lenovo IdeaPad U300s
dmi.sys.vendor: LENOVO

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


** Tags: amd64 apport-bug precise running-unity

-- 
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/1035305

Title:
  Crash when switching apps back to Firefox (may be Firebug related)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1035305/+subscriptions