If this browser hijack is preventing you from accessing your operating system control panel, it sounds like it is more than just a simple browser hijack. It is strongly recommended that you run a scan for malware on your system. Antivirus programs are unable to detect everything and may miss the infected files. The following free programs work alongside your current antivirus: * [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner] * [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware] * [http://support.kaspersky.com/viruses/disinfection/5350 Anti-Rootkit Utility - TDSSKiller] * [http://general-changelog-team.fr/en/downloads/viewdownload/20-outils-de-xplode/2-adwcleaner AdwCleaner] (for more info, see this [http://www.bleepingcomputer.com/download/adwcleaner/ alternate AdwCleaner download page]) * [http://www.surfright.nl/en/hitmanpro/ Hitman Pro] * [http://www.eset.com/us/online-scanner/ ESET Online Scanner] Personally, I have used and recommend AdwCleaner. You may also want to read these articles for information and further steps on solving this issue: *[[Troubleshoot Firefox issues caused by malware]] *[[Remove a toolbar that has taken over your Firefox search or home page]] You can also try downloading the [https://addons.mozilla.org/firefox/addon/searchreset/ Search Reset Tool] on Firefox. Let us know if you are able to remove the issue from your computer.