does the same thing happen when you launch firefox in Diagnose Firefox issues using Troubleshoot Mode? if not you should have a closer look at your addons and disable/uninstall all extensions you don't recognize/trust

Yes it's still doing it. I checked all my plug-ins and extensions and there's nothing wierd going on there.

It sounds like your computer may be infected with some sort of a virus / Malware.

I suggest the following resources:

Is my Firefox problem a Result of Malware is a Mozilla Support article with some good tips on avoiding and fighting malware.

To double check your system is clean, do the following (Not official Mozilla advice, just good practice from personal experience)

Download and Install MalwareBytes Anti-Malware, run a full Scan. http://www.malwarebytes.org/

Download and Run TDSSKiller http://support.kaspersky.com/faq/?qid=208283363

Download and Install Microsoft Security Essentials http://windows.microsoft.com/en-US/windows/products/security-essentials (not an official endorsement, but I personally recommend MSE as an awesome permanent anti-virus)

Double check for all Windows Updates.

Also, I noticed you have the coupon printer installed. I would go to Start, Control Panel, then programs and features and uninstall the coupon Printer from inside there. It can cause some problems with Firefox.

If you are still having problems with Malware after that, I would recommend either http://www.bleepingcomputer.com/virus-removal/, or having your computer cleaned by a professional.

Tylerdowner, how can you see that I have the coupon printer installed? I'm still running some of the scans you suggested. So far nothing malicious has been identified.

If you click on the "More system details" in the upper right hand corner of this thread, then you can see the plugins you have intalled.

I just used AVG PC tuneup and it seems to have fixed the problem. Thank you for your help. You guys are great!