I use both of them but Firefox mainly because it opens most of my pages.If I use I.E and I want to watch a video on the internet it wouldn't work,it just wouldn't come up but if I use Firefox it would come up but there won't be any sound,Whats the problem?
Sounds kinda funny that IE wouldn't work for you when you open from a video source. Are you trying to watch the video from WMP or just from a web page?