[Bug 1359384] [NEW] opening web page in firefox causes X to lockup

[Mark Rages]

Public bug reported:

The web page is http://fresh.co.nz/homemade-quarg-or-quark/

When this page finishes loading, X becomes unresponsive to mouse or
keyboard input.

ctrl-alt-f1 doesn't open a new console.

If I shell in from another computer and kill  Xorg, I can log in again
and I'm back in business.  Killing firefox isn't enough.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: firefox 31.0+build1-0ubuntu0.14.04.1
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  markrages   7857 F.... pulseaudio
 /dev/snd/controlC0:  markrages   7857 F.... pulseaudio
BuildID: 20140715214327
Channel: Unavailable
CurrentDesktop: Unity
Date: Wed Aug 20 14:26:20 2014
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2014-07-25 (26 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
IpRoute:
 default via 192.168.0.1 dev eth0  proto static 
 192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.71  metric 1
IwConfig:
 eth0      no wireless extensions.
 
 lo        no wireless extensions.
Locales: extensions.sqlite corrupt or missing
PrefSources: prefs.js
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=31.0/20140715214327
RelatedPackageVersions:
 rhythmbox-mozilla 3.0.2-0ubuntu2
 totem-mozilla     3.10.1-1ubuntu4
RfKill:
 0: hci0: Bluetooth
 	Soft blocked: no
 	Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/25/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0XCR8D
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd04/25/2014:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn0XCR8D:rvrA03:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 9020
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

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


** Tags: amd64 apport-bug trusty

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Title:
  opening web page in firefox causes X to lockup

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