Ive had yahoo as my home page for years and over the last two weeks every time I open Fire fox my home page is amazon. When I change it back to yahoo it just goes back to amazon. I ran virus protection and ad ware. I have reset Firefox many times I dont know what else do
Start Firefox in Safe Mode to check if one of the extensions (Firefox/Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Firefox/Tools > Add-ons > Appearance).
Do NOT click the Reset button on the Safe Mode start window.