each time i open firefox this site appear ( http://www.mozilla.org/el/firefox/12.0/whatsnew/?oldversion=rv:11.0 ). I havve try to fix it via tab options but i can figure what to do, i have try to leave it as blank page AND to add mine personal website to open when i start it but nothink work ( if i choose blank then when i open the browser there are 2 tabs, a blank page and the site i type before. The same goes if i choose any site as a home page