I wouldn't expect any ad-block from Google since that's where they get their money. But I totally agree about a built in Gmail indicator. I would love that. I use TabMixPlus in Firefox so I don't have those tab problems but Firefox should have that stuff built in. You can reorder stuff, lock tabs (I think), and open recently closed tabs. My experience with Firefox 3 has been a lot worse than Firefox 2 but a lot of it has to do with how crappy Flash 9 is. Most of the problems should be fixed with Flash 10 but it's still annoying.