I'm planning to switch from Vimperator to this when I install Firefox 4, however, I already have numbered hinting when I hit f. Is it different in some way?

It's still f. It just looks a lot nicer.

>It just looks a lot nicer.

Maybe I'm just not used to it yet, but I liked the way Vimperator did it: having the hinting number also be in yellow made it easier to see.

It's possible there are ways to configure this; I haven't checked thoroughly yet.

…It looks pretty much exactly the same.

I had continuous problems with Vimperator on FF4, thus far Pentadactyl's been a bit more stable although occasionally it seems to get deactivated altogether and I need to restart the browser.

Actually, I just realized that the nicer look is only is in the nightlies right now.