Rated 3 out of 5 stars
This and all-in-one gestures really can't compare to mouse gestures Redox.
I enabled left click-triggered gestures and it made it so I couldn't select text anymore unless I pressed the Alt key on my keyboard. Not good. Redox has a feature so that it times out after a configurable amount of time so you can click the page and hold for a few milliseconds and then select text. I prefer left click gestures because left clicking is more "natural".
Also, there is no diagonal gesture support so you have to do rather awkward mouse movements if you want more than four gestures. Not good.
Anyway, I've gone back to Redox...it works great with FF8 (you may have to edit install.rdf file). If you like this addon there's a good chance you'll love Redox.