For what seems to be the hundredth time, I have been asked to "fix" one of my friend's computers. And each and every time it has more to do with the browser choice than the PC.
Since we are doing more on the internet with SaaS and cloud services our choice of internet browsers is more important than ever. This goes to show that browser functions are increasingly becoming more important than underlying OS capabilities.
By the way, FF is not better because it is free (so is IE 8), but because it is developed on open source frameworks.