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Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

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New User

Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

It seems that since the automatic update from Firefox 14.0.1 to Firefox 15.0, the browser works normally when viewing pages containing Adobe Flash elements, but crashes when I close the Firefox window. Apparently the browser exits normally but one or two seconds later, Windows reports that Firefox has stopped working and the crash details indicate there was a problem with xul.dll.

This happens randomly, not systematically. But in all cases, it was after some Flash content was loaded. It never happened with Firefox 14 nor any previous versions, and Flash 11.4 was installed before the automatic Firefox update.

Using Firefox 15.0, Flash 11.4.402.265 on Windows 7 SP1 64 bits.

31 REPLIES
N/A

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

We're sorry to hear that your Firefox seems to be crashing. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

  1. Enter about:crashes in the Firefox location bar (that's where you enter your website names) and press Enter. You should now see a list of submitted crash reports.
  2. Copy the most recent 5 report IDs that you see in the crash report window and paste them into your forum response.

Thanks in advance for your help!

More information and further troubleshooting steps can be found in the Firefox crashes - Troubleshoot, prevent and get help fixing crashes article.

New User

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

Thanks for you reply ! Actually, I believe the crash is due to some particular conditions in the interaction between Firefox and the Flash plug-in, since it does not crash every time Flash content is played. Still, the browser crashed on exit 3 or 4 times within less than 24 hours after the update. Sadly, the crash reporter was not enabled when it failed, since my last Firefox crash dates back from 2009 (which tells how remarkably stable it is ! So, I'm not blaming the browser itself, but probably some interaction issue with the plug-in). I will re-enable it in the possibility of a future Flash/Firefox issue again.

At worst, I can wait for a quick bugfix update either from Mozilla and/or Adobe, but if there is any possibility of a temporary workaround, I think it's worth trying finding one Smiley Happy

N/A

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

Can you try a clean reinstallation of Firefox (Your profile will remain as it is):

See Uninstall Firefox and How to download and install Firefox on Windows

New User

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

I did it but it didn't seem to change anything to the problem. I also asked a few friends and they seem to have the same kind of issue when playing Flash content, though for some, the browser seems to crash during a session and not when exiting.

To make sure it's not a crash specific to this computer, I also tried it on another Windows machine (with XP SP3, same version of Firefox and same Flash plug-in and Firefox modules) and got two random crashes as well when reproducing the issue.

I see some other people who read this thread seem to be having the same or a similar issue. If they don't mind posting replies with their crash details too, it would be very helpful Smiley Happy Thanks !

I'll post my crash report when it fails again !

New User

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

I'm not getting crashes but simply a complete 'freeze' for a time whenever Flash content appears. My hard disc sounds as though it is about to fly free from the machine..then finally slows to something sensible and a stuttering play occurs ! I'm using Windows 7, FF 15 and Flash 11.4. I expect some pauses in play because my connection is slow..but this does not cause freezing!

New User

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

Ok, it seems the crash occurs at a very late stage in the program when the browser is closing because even with the crash reporter enabled, it does not trigger it at all. The only message being the standard "This application has stopped working" Windows message offering to try and find a solution or to simply stop the failing program. So, there's no way for me to provide any crash report about this :/

I have to say I don't really understand why it crashes randomly. For instance, yesterday, I used Firefox as normal, and I did see a lot of pages with Flash content without any trouble. And this morning, it crashed on exist at the second session after having vaguely looked through the homepage of Google News.

If it's related to Flash, would it be possible that Better Privacy (that I use massively) might cause a crash on exit when removing all the LSO's if, let's say, Flash is still writing/reading them? My BetterPrivacy module is set to delete all LSO's without prompting on browser exit.

This is all I can provide through the Windows error information :

Failing application name : firefox.exe, version : 15.0.0.4619, date : 0x50382fcd
Failing module name : xul.dll, version : 15.0.0.4619, date : 0x50382f44
Exception code : 0xc0000005
Error offset : 0x001bea47
Failing process ID : 0x5fc
Failing application starting time : 0x01cd89b721eb0bef
Path to failing application : C:\Program Files (x86)\Mozilla Firefox\firefox.exe
Path to failing module : C:\Program Files (x86)\Mozilla Firefox\xul.dll
Report ID : 9c0f224d-f5aa-11e1-a6f9-002421db1db8
New User

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

Hi, I'm experiencing a similar issue. What security software are you using?

New User

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

I'm using F secure..

New User

Re: Firefox 15 randomly crashes on exit after having viewed pages containing Flash content (Flash 11.4)

Avira Antivir Premium 2012 here. All up-to-date with the latest engine, definitions, and with the browser protection (formerly Webguard) enabled.

I also thought it might have something to do with it, but it seems the bug also happens in different configurations with other security software.