Recently, my desktop, (uses win 7 home prem) got corrupted. I got that straightened out only to find that when i tried to use Firefox, all I got was a big white screen. Tool bars became unreachable, the only way to get out was the old "control+alt+delete". I do know that it was ver. 40.3. I could not resolve problem any other way so thought, "delete and re-install !!!". NOT so. I HATE i-net explorer, but desperation had set in.....no luck....would not even d'load mozilla from the firefox site. BUT!! there is Google Chrome!!! nope....could not get that to work at all. (It WAS an old copy). Now I am trying to use my lap-top (just upgraded itself to win 10) to d'load a usable copy for the desktop (win 7), but cannot seem to find a "VER 40.3 for that win version. HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!