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 closes right after opening

  • 3 replies
  • 4 have this problem
  • 8 views
  • Last reply by LPadrino

more options

Firefox closes shortly after opening on first opening after boot. On second or subsequent openings, it stays open and functions normally. This happens in both 26.0 & 27.0. Using Win 8.1, Win Defender, Advanced System Care Surfing Protection, ASC Realtime Protector, ASC Homepage Protection. Problem persists with ASC Surfing Protection deactivated. Another poster with same problem traced it to a Comcast web protection program, but I'm using ATT/Yahoo. Thanks for any help.

Firefox closes shortly after opening on first opening after boot. On second or subsequent openings, it stays open and functions normally. This happens in both 26.0 & 27.0. Using Win 8.1, Win Defender, Advanced System Care Surfing Protection, ASC Realtime Protector, ASC Homepage Protection. Problem persists with ASC Surfing Protection deactivated. Another poster with same problem traced it to a Comcast web protection program, but I'm using ATT/Yahoo. Thanks for any help.

Modified by LPadrino

All Replies (3)

more options

Does Firefox display the Mozilla Crash Reporter or give any other indication that it has crashed, instead of exiting normally?

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.

If Firefox isn't recording crash data, Windows might be logging something. However, that's a little out of my expertise... especially on Windows 8/8.1. On Windows 7, the Event Viewer is under

Start > All Programs > Administrative Tools > Event Viewer

Or from the search box,

eventvwr.exe

Unless you clear your logs, it may take 30+ seconds to load.

In the "Application" log there might be some kind of failure logged for Firefox, or some kind of kill issued by another process. I'm just guessing.


The Comcast software bundle is mostly Norton Internet Security, I believe, supplemented with a few other things.

You probably should turn off ASC Homepage Protection, too, in case it is shutting down Firefox in order to revert your settings file.

more options

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.

more options

jscher200, thanks for your reply. I've checked your suggestions as follows:

Does Firefox display the Mozilla Crash Reporter or give any other indication that it has crashed, instead of exiting normally?

No such indications, just shuts down.

Please check the support article "Firefox crashes - Troubleshoot, prevent and get help fixing crashes" (especially the last section) for steps to get those crash IDs

No pertinent report.

In the "Application" log there might be some kind of failure logged for Firefox, or some kind of kill issued by another process.

I'm not seeing anything I can identify in the eventvwr.exe, Application.

I've tried starting FF with all Extensions disabled and all the ASC options mentioned in original post disabled also, all without solving the problem. I'm hoping someone else may have had some first hand experience with this problem.

I've yet to try cor-el's suggestion, but will report back when I do.