Try updating your graphics drivers (and conversely maybe roll back a version to check a new driver is not the problem! )

• Upgrade your graphics drivers to use hardware acceleration and WebGL

If you still get crashes please type about:crashes into the address bar and paste into your next message a couple of the recent CrashIDs (they start bp- . ) You will not crash in safe mode, because that disables HA but please disable all add-ons and plugins before attempting to test.

• see Troubleshoot Firefox crashes (closing or quitting unexpectedly)

no new drivers are available, my asus card is up to date. i did however download and re-install the same/most recent drivers just to be sure and it had no effect on the problem.

I did notice that my system received a automated windows update while i was at work. never had this problem w/ FF before today - system is 2years old. update info:

Platform Update for Windows 7 x64-Edition (KB2670838)

Installation date: ‎2/‎27/‎2013 3:01 AM

Installation status: Successful

Update type: Recommended

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information. After you install this item, you may have to restart your computer.

More information: http://support.microsoft.com/kb/2670838

Help and Support: http://support.microsoft.com

I had hoped the easy option would have worked.

Are you able to provide a couple of recent submitted CrashIDs please.

I have the same problem, and KB2508272 looks like a strong contender for either culprit or trigger. Unlike the OP, I had my machine up and running this morning, with Firefox working fine, when I was prompted to install the update (I don't know for sure what level of Firefox; I'm now on 19, but after the reboot - and before the first crash - I saw a brief message about checking add-ons for compatibility - so it's possible I was upgraded to 19 at the same time). Whatever, since the reboot I've mostly(!) been unable to run Firefox in other than safe mode unless I disable hardware acceleration. I say "mostly", because I tried upgrading my graphics drivers to the latest level (nVidia GeForce GTX460, build 314.07), and at the time that *seemed* to cure the problem - but after shutting the machine down for a few hours and restarting, the problem is back.

https://crash-stats.mozilla.com/report/pending/a5528376-b947-4aac-8130-4d5a82130227

See also:

• bug 812683 - Win7 startup crash in _d2d_clear_surface @ CContext::RestorePipelineStateImpl (d3d11.dll, after installing KB2670838)

(please do not comment in bug reports: https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)

heres the most recent crash:

bp-014675e1-2505-495b-bd3f-2103621302282/28/20132:39 AM

heres the first crash i received from this issue:

4919c7ee-d416-486c-a9cb-27374e49efe62/27/20133:16 AM

ok looks like "the first crash" isnt on file anymore - heres 2 more recent ones:

bp-ad781ff9-8eef-40e9-8a89-15e0621302282/28/20132:39 AM

bp-6cd309d7-cd5b-4850-b7bf-6ecc421302282/28/20132:39 AM

Actual Bugzilla etiquette is no pointless comments - Do not add a comment to a bug unless you have something constructive and helpful to say. (And having made that constructive observation, I'll now shut up.)

Note, per the Crash Report you are on fx19.0
There will be a new release for Windows anytime now: fx19.0.1 that is I believe addressing a Windows 8 crash. No idea whether or not it will help with this issue

I note from a couple of the bug comments that besides disabling HA

• uninstalling the MS upgrade KB2670838 may help
• and there was a suggestion from MS recommending running the Windows 7 App Verifier on a machine that is having this issue (find it at http://www.microsoft.com/en-us/download/details.aspx?id=20028 ).

For forum cross referencing purposes

• Crash Report for your CrashID bp-6cd309d7-cd5b-4850-b7bf-6ecc42130228
  Firefox 19.0 Crash Report [@ RtlpAllocateHeap | RtlpAllocateHeap | d3d11.dll@0x7c20 ]
  • Crash Signature: RtlpAllocateHeap | RtlpAllocateHeap | d3d11.dll@0x7c20
  • Related Bug 812683 NEW --- Win7 startup crash in _d2d_clear_surface @ CContext::RestorePipelineStateImpl (d3d11.dll, after installing KB2670838)

I have the same problem...

Submitted Crash Reports Report ID Date Submitted bp-893c7421-ffc2-4f3b-80ea-4e0fe2130228 28/02/2013 11:32 bp-1e4d3f55-271b-43c6-87ca-505f12130228 28/02/2013 11:32 bp-5d57f0e4-bb4f-4220-ad39-942ec2130228 28/02/2013 11:30 bp-f5d44796-92a0-4593-8236-782dd2130228 28/02/2013 11:28 bp-d4043abb-585e-4ad2-80f8-e50712130228 28/02/2013 11:20 bp-f26c1421-b607-48f5-862b-41b752130228 28/02/2013 11:07

_System_ Windows 7 Pro Version 6.1 (Build 7601 - SP1) Graphics Card NVIDIA GeForce GTX 560 Ti Memory 16GB CPU Intel i7-3930k

SOLUTION (Iterim solution for other users, until FF/MS/NVIDIA fix it) - Turn off Hardware Acceleration under menu Tools -> Options -> Advanced -> General Under Browsing -> UNCHECK "Use hardware acceleration when available"

Update, After also finding the following applications crashing

• Internet Explorer (32bit only, 64 bit still fine)
• Komodo Edit

I uninstalled the MS update KB2670838 (covertly applied to my system this morning). After a reboot I can now start IE 9 (32 bit), Komodo, and Firefox (with hardware acceleration on). Thanks Microsoft for a wonderful day :o) All is good now. Let's hope MS (or whoever) fixes it.

Thanks to all on this thread for helping

Für alle Windows 7 x64 Edition Nutzer:innen

Die am 27. 2. 2013 installierte Version - KB2670838 (Plattformupdate) - DEINSTALLIERT - und schon funktioniert Firefox 19 WIEDER wie vorher !

Please uninstall yesterdays windows-Update " KB2670838 " and your firefox will work OK !

Plattformupdate fur Windows 7 x64 Edition (KB2670838) Installationsdatum: ‎27.‎02.‎2013 08:33 Installationsstatus: Erfolgreich Updatetyp: Empfohlen Installieren Sie dieses Update, um Probleme in Windows zu beheben. Eine vollständige Liste der Problembehebungen in diesem Update finden Sie in dem entsprechenden Microsoft Knowledge Base-Artikel, der weitere Informationen bereitstellt. Nach der Installation dieser Komponente müssen Sie den Computer möglicherweise neu starten. Weitere Informationen: http://support.microsoft.com/kb/2670838 Hilfe und Support: http://support.microsoft.com

agreed, uninstalling the windows update KB2670838 fixes the problem.

to do so [in win7 anyway] simply open windows update, click "view update history" click "installed updates" scroll down to the section titled "microsoft windows" and look for the update KB2670838, right click and select uninstall. reboot system and all will be well w/ the universe again.

Thanks for everyone's help. This issue has been solved.