firefox repeatedly crashing on startup when Global Menu Bar Integration enabled

[Ketil]

My browser crashed while streaming video from an online news site. Next time I restarted, there was a new NoScript update installed, and then firefox crashed immediately. After that, firefox would crash within 5 seconds of every restart. After retrying a number of times, firefox detected that it was crashing on startup, and gave me some options to start in safe mode or disable various options and restart.

I managed to disable all plugins, and now Firefox is been working again. Enabling one by one plugin, I discovered that the Global Menu Bar Integration causes firefox to crash when I enable it. I'm leaving it disabled for now.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: firefox-globalmenu 14.0.1+build1-0ubuntu0.12.04.1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
Uname: Linux 3.2.0-29-generic-pae i686
NonfreeKernelModules: zfs zcommon znvpair zavl zunicode
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ketil 2664 F.... pulseaudio
BuildID: 20120713224758
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2700000 irq 46'
   Mixer name : 'Intel Cantiga HDMI'
   Components : 'HDA:10ec0269,10cf0000,00100004 HDA:80862802,80860101,00100000'
   Controls : 31
   Simple ctrls : 14
Channel: Unavailable
Date: Fri Aug 24 15:51:49 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
IpRoute:
 default via 10.14.0.1 dev eth0 proto static
 10.14.0.0/16 dev eth0 proto kernel scope link src 10.14.10.64 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
PrefSources:
 prefs.js
 [Profile]/<email address hidden>/defaults/preferences/pref.js
ProcEnviron:
 SHELL=/bin/bash
 TERM=xterm
 PATH=(custom, user)
 LANG=en_GB.UTF-8
Profiles: Profile0 (Default) - LastVersion=14.0.1/20120713224758 (In use)
RelatedPackageVersions:
 rhythmbox-mozilla 2.96-0ubuntu4.1
 totem-mozilla 3.0.1-0ubuntu21
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to precise on 2012-05-10 (105 days ago)
WifiSyslog:

dmi.bios.date: 09/18/2009
dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
dmi.bios.version: Version 1.07
dmi.board.name: FJNB203
dmi.board.vendor: FUJITSU
dmi.board.version: F4
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU
dmi.chassis.version: LIFEBOOK P8110
dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.07:bd09/18/2009:svnFUJITSU:pnLIFEBOOKP8110:pvr10601127896:rvnFUJITSU:rnFJNB203:rvrF4:cvnFUJITSU:ct10:cvrLIFEBOOKP8110:
dmi.product.name: LIFEBOOK P8110
dmi.product.version: 10601127896
dmi.sys.vendor: FUJITSU