[[Searches are redirected to another site]]. In addition to the steps on that page, you may want to disable all your addons (in Tools > Add-ons) in case one of them is changing Firefox settings.

Do a malware check with some malware scanning programs on the Windows computer.<br /> You need to scan with all programs because each program detects different malware.<br /> Make sure that you update each program to get the latest version of their databases before doing a scan.<br /><br /> *http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware *http://www.superantispyware.com/ - SuperAntispyware *http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page *http://www.safer-networking.org/en/index.html - Spybot Search & Destroy *http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free See also: *"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked ----- Please update Firefox to the latest version via "Help > Check for Updates or Help > About Firefox"<br /> The Firefox version that you use is no longer maintained with security and stability updates.<br /> Using unsupported Firefox versions is at your own risk and makes you vulnerable to attacks.<br /> *Firefox 7.0.x: http://www.mozilla.com/en-US/firefox/all.html

Try the above tools first. If nothing works, you may try to manually get rid of the clothesdryerstore virus : http://blog.teesupport.com/cannot-remove-clothesdryerstore-com-manually-uninstall-clothesdryerstore-com-virus-completely/