Not sure if I need 64 bit as I read http://arstechnica.com/information-technology/2015/12/firefox-for-windows-finally-has-an-official-stable-64-bit-build/
Installed the new 64 bit version of FF and seems stable and seems a little snappier .
Is it my imagination or is it really faster ?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic