Nice sig now, waiting for pranav to see it...
Yeah, me too
cfitz, grab this
I think All-In-One Gestures let's you custimize keyboard shortcuts; it should let you do something like the ctrl-n shortcut you want.
There should be one floating around for the history thing; they've completely reworked the extension page, and remove a bunch of them, since the latest Firefox came out. However, the old one's are still out there. There's gotta be a mirror for them somewhere.