I'm updating my Java program, and don't know whether to select the 32 or 64 bit version. (I'm running Win 7 on a 64bit laptop) I can't find out which version of Firefox browser is running, other than its version "3.6.18". (The Java download asks me whether I want to download the 32bit or 64bit version, based on the browser's bits. Can't find out if I'm using a Firefox 32 or 64 bit version.)