I understand none of this. To me, there is little difference in speed or features between the various browsers out there. To me, tabs seem pointless. Plugins for Winamp? Why? Flash works fine for me in IE7 and isn't any slower than FF2 in Ubuntu.
I drive the car I drive because I'd be scared to death of the other retards on the road if I didn't have something with a touch of performance to it. I need a car that does exactly what I tell it to when I tell it to do it. I'm very certain that if I weren't in that car, I would have been in 4 or 5 accidents by now because of other people's stupidity. For me, it isn't about penis-enhancement or extras. I don't fear for my life because a page renders a tenth of a second slower in one browser over another.
Tabs? Pointless? Do you have more than one browser going at any given time? That seems too much imo.