This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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 26 always errors at closing. No addons

  • 5 replies
  • 14 have this problem
  • 2 views
  • Last reply by CarlaV

more options

Every time I close Firefox 26 it errors and goes into "checking for solutions". It really is annoying plus I get concerned when there is a bug that cannot be accounted for. I've uninstalled, reinstalled, reset, etc.

Every time I close Firefox 26 it errors and goes into "checking for solutions". It really is annoying plus I get concerned when there is a bug that cannot be accounted for. I've uninstalled, reinstalled, reset, etc.

Chosen solution

Good news so far. I reinstalled Firefox and so far no problems. I have reinstalled more than once before so I'm not at all sure why this time is different!

I did get event log entries: Faulting application firefox.exe, version 26.0.0.5087, time stamp 0x52a0d273, faulting module xul.dll, version 26.0.0.5087, time stamp 0x52a0d20a, exception code 0xc0000005, fault offset 0x0014e1a8, process id 0x4228, application start time 0x01cf00582d9fd7f0.

I'm hopeful that the reinstall resolved it but It would be nice to know why?!?

THANKS for all your help

Read this answer in context 👍 0

All Replies (5)

more options

Does it make any difference what pages you have open when you Exit Firefox?

(By Exit I mean choose Exit from either the orange Firefox button menu or the classic File menu, instead of using the red X button to close the window.)

If there's no pattern with pages, it could be a compatibility issue with one of your extensions... or something else.

When Firefox crashes, it usually records information about what was happening at that moment. You can submit that data to Mozilla and share it with forum volunteers to see whether it points to the solution. Please check the support article "Firefox Crashes" (especially the last section) for steps to get those crash IDs, and then post some of the recent ones here.

more options

Since you asked I paid attention and as far as a can tell, running many tests, it happens on 2 banking sites. It happens if I use the "X" or "File>Exit" . I do not have any addons or extensions enabled (I disabled everything when this started happening. The error says "Firefox has stopped working - Windows is checking for a solution". Then, it opens a 2nd window "Firefox has stopped working - A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available" I only have the open the click on "close program". I "close program" and that's the end of the messages.

I've looked through all of Firefox solutions and tried suggestions. Do you have any idea if it might be something on the websites?

THANKS

more options

Interesting results! Over the years some versions of Trusteer Rapport, which users install at the instruction of their banks, have created problems in Firefox. Otherwise, I can't think of anything specific to bank sites. Except the possibility of a malware infection. This article lists some tools you can use to supplement your regular security scans: Troubleshoot Firefox issues caused by malware.

Regarding the crash data, if Firefox's about:crashes page does not contain relevant data, you could try the Windows Event Viewer as described in this Microsoft support thread: "appcrash" events are showing in the event logs - Microsoft Community. I wasn't able to find any examples in my own event log.

more options

Chosen Solution

Good news so far. I reinstalled Firefox and so far no problems. I have reinstalled more than once before so I'm not at all sure why this time is different!

I did get event log entries: Faulting application firefox.exe, version 26.0.0.5087, time stamp 0x52a0d273, faulting module xul.dll, version 26.0.0.5087, time stamp 0x52a0d20a, exception code 0xc0000005, fault offset 0x0014e1a8, process id 0x4228, application start time 0x01cf00582d9fd7f0.

I'm hopeful that the reinstall resolved it but It would be nice to know why?!?

THANKS for all your help

more options

FYI, same problem occuring. Firefox crashing on exit!! I uninstalled it and will just move to a different browser. Thanks for your help though.