Rated 4 out of 5 stars

Good, except 1)bit thin. actually looking for Opera, but doesn't matter, it's fine. About double thickness would be perfect for me. 2)HAS to go on right side for me-i love that you can do that-but i have to check or uncheck the options box each time i open firefox, alternately - whatever it was last time,i have to reverse.And then it moves to the right hand side.Not sure if interacting with vertical toolbar or other extension, and no trouble however. Thanks a lot, i am sick of back pain from screwing myself down to waist height to view text at a comfortable height, whilst raising my arms high to type as if i was a dog begging!

This review is for a previous version of the add-on (0.9.3).