I have windows 7 - 64bit When I try to install firefox on my system it opens the file the bar gets to 99% and it closes back out everytime before it opens the actual screen to install firefox. I opened the task manager to see what was going on... the firefox setup 5.0 exe file shows up in the task manager then closes right back out before the file opens... Not sure why this is hanging here but I would love to get firefox back I havent been able to install it on this computer since I got it.