Starting Firefox multiple times crashes X.org

[Stephan Diestelhorst]

When I use desktop effects enabled, starting and closing firefox (15.0.1+build1-0ubuntu0) eventually crashes the X server with a Null pointer exception.

Using fglrx-updates (8.960-0ubuntu1.1) and also trying the upstream 12.9 beta release with Kubuntu Precise, with xorg (1:7.6+12ubuntu1) package.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: fglrx-updates 2:8.960-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
Date: Mon Oct 1 16:08:49 2012
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: fglrx-installer-updates
UpgradeStatus: Upgraded to precise on 2012-09-28 (3 days ago)
---
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
DistroRelease: Ubuntu 12.04
NonfreeKernelModules: fglrx
Package: xserver-xorg-core 2:1.11.4-0ubuntu10.8
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=
 TERM=xterm
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Tags: precise
Uname: Linux 3.2.0-31-generic x86_64
UpgradeStatus: Upgraded to precise on 2012-09-28 (3 days ago)
UserGroups: adm admin cdrom dialout fuse lpadmin media plugdev sambashare

[Stephan Diestelhorst (syon)]

Is that related to bug #1037896 ? Or to the remark that GLX has changed in http://lists.x.org/archives/xorg-devel/2012-August/033307.html ?

[Stephan Diestelhorst (syon)]

Attaching a small script that will repatedly run firefox to trigger the crash.

[Stephan Diestelhorst (syon)]

apport information

[boussad (picks)]

Hello, take a look here : https://support.mozilla.org/en-US/kb/firefox-crashes-troubleshoot-prevent-and-get-help