We're sorry to hear that your Firefox seems to be crashing when you open it. 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. Press the following shortcut to get a Run window: [Windows] + [R]. This should bring up a window that contains a text field.
2. In that text field, enter %APPDATA% and press Enter. An explorer window should open.
3. From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports. Double-click on submitted.
4. Now, you should see a list of files that contain reports. Go to View > Arrange Icons by > Modified to get the most recent files at the top of the window.
5. Open the most recent 5 files with a text editor and copy the IDs.
6. Paste each ID with bp- into the reply window on the forums.

Thanks in advance!

You can find more information and troubleshooting steps in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

I you hadn't fixed the problem yet and if everything else fails, then it sounds to me that maleware-bytes is not a very good program, I used it in the past and it never worked for me, you need a better one like Norton, I know they are expensive but it is worth your money, I searched for Norton 360 last month and found it on sale for 40%off, then I searched for a coupon code and got another 40% off, it ended up costing me $20.98 after taxes. Sometimes this happens, a great price for a very expensive and great product. Well to me it sounds like you have a worm or a virus on your computer, I would suggest saving all your important stuff to an external drive, or CD's or DVD's, or back it all up if that's what you like to do best. I prefer to put all my stuff on an external drive so I don't have to back anything up. What ever works best, either format your drive and reinstall your operating system, or use the recovery option in your computer, or maybe you have to restart your computer and press f7 or f8 before the windows logo first opens to reinstall your operating system. You can call the computer manufacturer to see how this function works, to reinstall the operating system, you may have to buy new CD's which may run you anywhere from $20-$50 for the operating system of cd's.

Note that there are a lot of specialized malware detecting and cleanup programs and each of them have their own purpose and can detect other kinds of malware and spyware.
There is no program that can detect and remove all malware (Norton and other payed software won't do this as well), so it is important to run a scan with more than one program.
Malwarebytes' Anti-Malware is a good program to start with, but may not be sufficient.

Do a malware check with some malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.
All these programs have free versions.

Make sure that you update each program to get the latest version of their databases before doing a scan.

• Malwarebytes' Anti-Malware:
  http://www.malwarebytes.org/mbam.php
• AdwCleaner:
  http://www.bleepingcomputer.com/download/adwcleaner/
  http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
• SuperAntispyware:
  http://www.superantispyware.com/
• Microsoft Safety Scanner:
  http://www.microsoft.com/security/scanner/en-us/default.aspx
• Windows Defender: Home Page:
  http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
• Spybot Search & Destroy:
  http://www.safer-networking.org/en/index.html
• Kasperky Free Security Scan:
  http://www.kaspersky.com/security-scan

You can also do a check for a rootkit infection with TDSSKiller.

• Anti-rootkit utility TDSSKiller:
  http://support.kaspersky.com/5350?el=88446

See also:

• "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

And don't use the free programs as they don't give you the full benefits, buy the full version, and yes Norton 360 does get all that stuff f, and the Norton power eraser does as well also.

I can follow these instructions through the click on crash reports. From there the only file is InstallTime20130910160258.

I have full version of Malwarebytes. Have run several virus softwares, but this doesn't seem to be the problem. Internet Explorer runs, just not Firefox.

I have full version of Malwarebytes. Have run several virus softwares, but this doesn't seem to be the problem. Internet Explorer runs, just not Firefox.

I ran Windows safety scanner, and the anti-root utility, and the full Malwarebytes program. I still cannot get Firefox to work, but Internet Explorer works through all of this.

I can follow this through Crash Reports. There is no "submitted" there, only an InstallTime program. If I click on that, I am asked which program I want to use to open that folder.

You have to be more specific about install time, what operating system are you working on, etc.

feer56, when I click on crash reports, I do not see a "submit". I only see one file, "InstallTime" alexanderemrys, it is Windows 7.

And I love Malwarebytes. It has saved my computer, and others I work on from crashing.  I find it to be an excellent program. The problem seems most likely to be some conflict with Firefox, since Internet Explorer works.

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

The only way I would fix it, if it kept bothering me like this would to reinstall my operating system after a fresh start, seems like the reinstall is not erasing everything and the problem still exists, I would format from a webroot erase or something like that and reinstall from the operating system CD's.

Is there another program conflicting with your firefox, because you may have to reinstall both of them.

Im running windows 7 and I never had that problem. Sorry I couldn't help any further.