[HalfPint]

I thought it was a really nice really easy install. I didn't uninstall Firefox 2, I just installed 3 over top of it (I figured it was designed to do that) and it was. After installing it, it went through and checked all my plug ins, addons and themes to see if they were compatible. It said that 3 of them weren't but it had a comment at the bottom that said "check to see for compatible versions of your old plugins" or something like that and a button to click that was "yes" and on that was "no" I clicked "yes" and it found Firefox 3 compatable versions of my old plugins. I was very happy. Also all my customized toolbars were still customized the way I wanted them, browsing history in tact and bookmarks on the proper pages.