That could be due to Malware. Check the [[Is my Firefox problem a result of malware]] article. You should probably download and run both [http://www.malwarebytes.org/products/malwarebytes_free Malwarebytes] and [http://www.superantispyware.com/portablescanner.html SUPERAntiSpyware].

Thanks so much for your suggestion, unfortunately it did find a bunch of cookies/malware, but didn't solve my problem. If anyone else has any suggestions, it would be greatly appreciated.

Do a malware check with some malware scanning programs.<br /> You need to scan with all programs because each program detects different malware.<br /> Make sure that you update each program to get the latest version of their databases before doing a scan.<br /> <br /> * http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware * http://www.superantispyware.com/ - SuperAntispyware * http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page * http://www.safer-networking.org/en/index.html - Spybot Search & Destroy * http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free See: * "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked ---- If using the above listed scanners does not fix it or if you are blocked from installing those scanners then ask advice on one of the forums that specialize in malware removal mentioned in the <i>Popups_not_blocked</i> article.