Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox crashes on many different websites - possibly caused by Flash

  • 16 replies
  • 8 have this problem
  • 18 views
  • Last reply by CopperStag

more options

When browsing many different websites Firefox crashes to the crash report, this seems to happen the most on Tumblr and YouTube so im thinking it may possibly be Flash?

I would post the crash report but i cant remember how to, sorry

When browsing many different websites Firefox crashes to the crash report, this seems to happen the most on Tumblr and YouTube so im thinking it may possibly be Flash? I would post the crash report but i cant remember how to, sorry

Chosen solution

Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

If you keep having problems then also create a new profile.


You can also check for malware.

Read this answer in context 👍 1

All Replies (16)

more options

bp-916a0504-bcf5-4965-ba0d-0de7f2140918 18/09/2014 23:21 bp-141e6961-e02a-4b58-85a1-b597c2140918 18/09/2014 23:07 bp-56d2bab8-1a2e-44ac-9e3e-70df22140918 18/09/2014 22:39 bp-346f3518-071f-4e64-bbc8-42d852140918 18/09/2014 22:33 bp-d03014a1-1e26-4423-a49b-361b92140918 18/09/2014 19:04

more options

Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences in the address bar and press enter

Select Advanced > General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

more options

Tried it with hardware acceleration off for a while but it still ended up crashing

more options

For now, leave Hardware Acceleration off. This should not do harm.

Please post all new crash reports since the ones you posted above.

Were you in safe mode for any of the crashes? Witch one(s)?

more options

bp-04a2ca8d-4a9e-4e4d-ad9e-048662140919 19/09/2014 20:53 bp-1276e588-1e25-47e0-a412-099a02140919 19/09/2014 19:35 bp-04084eaa-4993-460f-993a-08b492140919 19/09/2014 18:59

i wasn't in safe mode for those, should i try staying in safe mode for some time?

more options

hello, please try to reset firefox and see if this can address the issue...

more options

Ive reset firefox and ill report back in a while

more options

just got a crash will trying to customise the layout, thought you guys should know

bp-a041c719-c0fe-4c90-bdca-4c59b2140919 19/09/2014 21:49

more options

Okay, so with firefox reset i got a popup saying flash had stopped working and then a few minutes later after reloading i got another firefox crash

bp-de73099b-9e87-40c9-a1c2-8994d2140919 19/09/2014 21:55

more options

Frame 9 of the crashing thread - atidxx32.dll = ATI driver version 8.982.0.0

Look for updated video drivers.

more options

Ive just checked and my drivers are up to date

more options

i have also just gotten another crash

bp-93326dda-108f-4e7d-b3b8-030792140919 19/09/2014 22:11

more options

those reports are all over the place - due to the wide range of error signatures, i would speculate that your hardware might be involved in the issue. can you test the integrity of your RAM with a tool like www.memtest.org?

more options

okay so ive tried everything and im still getting crashes but it only appears to be on YouTube now, im not sure if its flash because ive tried using "All HTML5" and set disable flash on youtube but i still get crashes

bp-c24a8565-ef61-47d6-8180-682572140924 24/09/2014 18:34

more options

Chosen Solution

Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

If you keep having problems then also create a new profile.


You can also check for malware.

more options

Thank you, the problem seems to be fixed at least for now