There may be multiple parts to this issue, based on past discussions. (1) iMesh Media Bar add-on This add-on may be hijacking your home page and location bar search. If you don't need this toolbar, you can uninstall it using the Windows Control Panel, Add/Remove Programs. Look for "Media Bar". After uninstalling, restart Firefox and check here to make sure it's gone: orange Firefox button ''or'' Tools menu > Add-ons > Extensions category (2) Reset your home page Visit the page you want to be your home page and then check out the methods described in this article: [https://support.mozilla.com/en-US/kb/How%20to%20set%20the%20home%20page How to set the home page | How to | Firefox Help]. (3) Location bar search If this was changed, you can change it back to Google using the tips in this thread: [https://support.mozilla.com/en-US/questions/790755 How do I get FF4 to use Google's I'm feeling lucky feature? | Firefox Support Forum | Firefox Help]. Does it work?