Hi Traina1984,

By default Firefox opens a blank tab when you hit the tab button. The fact that is shows an actual page leads me to believe that you have an add-on or something else causing your issue. I'd try starting Firefox in Diagnose Firefox issues using Troubleshoot Mode. If you don't have the issue while all of your add-ons, extensions, and themes are disabled, you can try adding them back in one by one until you find the culprit. You should look at the Extensions and Themes troubleshooting guide and the Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems article as well.

Hopefully this helps!

You might want to do a scan for malware.

• Malwarebytes' Anti-Malware - http://www.malwarebytes.org/mbam.php
• SuperAntispyware - http://www.superantispyware.com/
• Spybot Search & Destroy - http://www.safer-networking.org/en/index.html
• AdAware - http://www.lavasoftusa.com/software/adaware/

If these don't find it or can't clear it, post in one of these forums for specialized malware removal help:

• http://www.spywarewarrior.com/index.php
• http://forum.aumha.org/
• http://www.spywareinfoforum.com/
• http://bleepingcomputer.com/