Rated 5 out of 5 stars

Truly excellent; just what Firefox needs. Feels a bit like Safari on the iPhone (except without all the crashing!).

Note to pen users: for me, the extension felt really squirrely at first, but then I turned off the flicks feature, and now it's smooth and predictable. Terrific!

This review is for a previous version of the add-on (2.7.4).