Firefox 3 current version is 3.6.27

They're still supporting Firefox 3 for a while yet.

Does anyone understand how the new version numbering system works? It seems as though many minor changes cause the major version number to go up, so that it jumped from 8 to 9 to 10 in a very short time, with very few point releases in between.

you may to run real player in compatibility mode for windows xp,right click on your real player desktop icon and choose compatibility,then set it to run in compatibility for windows xp.