There's currently only one way (That I can think of) to change this.

1. Go to NewTabURL and download the addon.
2. After restarting Firefox
3. Go to Addons
4. Find NewTabURL
5. Open the options in that and make sure Blank page is selected.
6. Then just press save and test it out!

Thanks for the help, but there is no change. It still comes up with the Yahoo Search page. I wanted to show the page but Prt-Sc doesnt seem to work for that either.

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

• Don't make any changes on the Safe mode start window.
• https://support.mozilla.com/kb/Safe+Mode

• https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

Thanks for the reply, but it was in the Default theme. That didn't solve the problem.

Blocked Add-ons

• https://addons.mozilla.org/en-US/firefox/blocked/

Remove McAfee Site Advisor and Freeze.com NetAssistant. These add-ons are responsible for causing malfunctioning in Firefox.

Uninstalling Add-ons

• https://support.mozilla.com/en-US/kb/Uninstalling%20add-ons

Cannot Uninstall an Add-on

• https://support.mozilla.com/en-US/kb/Cannot%20uninstall%20an%20add-on

Check and tell if its working.

It doesn't show up in the add-ons list and it doesn't show up in add/remove programs. I removed the Yahoo toolbar that way, but this is left behind.

Disabling Freeze.com Net Assistant did it. Thanks