makondo wrote:... doesn't Fx3 have some sort of zoom built in?
Yeah, it does, but for my needs it doesn't really work very well - the zoom level persists between sessions, which I don't want (though a lot of people on the FF forums seem to like it).
At the moment, it's taking two extensions to cover my zoom needs - Page Zoom Buttons provides a whole stack of buttons to control zoom level, including a 3-in-1 button like this one. And NoSquint provides a way to defeat the persistent zoom feature.
I feel sure getting all this done in one simple, neat Custom Button should be possible, but, alas, I've no idea how.

