Change your Home Page

• https://support.mozilla.org/en-US/kb/How to set the home page

For Advance
Type about:config in the URL accept the warning.
Search > "browser.startup.homepage"
change the value to " www.google.com"

And if I may suggest, please get the latest version of Mozilla Firefox. http://www.firefox.com

Thank you!

If you do not keep changes after a restart then see:

• http://kb.mozillazine.org/Preferences_not_saved

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

• Do not click the Reset button on the Safe mode start window or otherwise make changes.

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes