It was in temp? Oh noez! Surely you clear your temporary internet files after every session?

If you're safe and clever in your surfing habits, security, and how you run your computer, then you can stick with IE. I don't see why you'd want to, but theoretically you could. Tell the truth, I'd prefer to use IE over FF. I find FF to be a horribly clunky and slow browser, uninituitive to use, and feature-poor - for all the praise about features, you'd have thought that they'd come as standard. I've made a number of friends at Uni who run FF, and they've all been mightily impressed with the features that Maxthon comes with as standard, but which FF is sorely lacking in. Either way, I'd probably use FF over Opera... now there's a waste of space.

And if it came with the features I use in Maxthon, Chrome would be my default without a question but, alas, it does not.

Just my two pence.