See:

• https://support.mozilla.com/en-US/questions/790833
• https://support.mozilla.com/en-US/questions/816181

Thanks a lot! I used Control panel\ Add-Remove Programs and found a toolbar that I did not install or ask to be installed. I uninstalled this toolbar and I have my old Firefox back again. Thanks so much for your help. My problem is resolved successfully!

Hi, My name is John, and I'm a member of the Searchqu Support Team. I'm here to help :) When jZip installs onto your pc it offered two basic installs, typical installation, which lists the add-on features such as searchqu homepage, and custom installation, which allows you to select the add-ons that you wish to install. There's no need to worry if you did the typical install - this isn't a virus, nor malware, and there's no need to Perform a virus scan against it. Since Searchqu is an addon feature of jZip, there's no need to uninstall jZip http://www.jzip.com/, the jZip Download Manager will work just fine without it :-) If you prefer to change your homepage please check: http://www.jzip.com/uninstall.php We are here to answer to any further questions :) The searchqu team support

Please look at following video for help www.youtube.com/watch?v=UO70vu_1p6g