open firefox at the top of address bar you will see File, Edit, View, History, Bookmarks, and Tools click on tools at the bottom click on options a window will open click on the general tab when that opens you should see Home page, in the box will be the page that keeps taking over delete that whole address in the box then type in the page you want then click OK. if you have already tried this go to your control panel and see if that page is listed in uninstall programs if so uninstall the page that keeps taking over. I would also go into your files and look for the page there see if you can uninstall the page there also. Hopefully one of these solutions will work if not let me know and I will try to figure out what else you can try.