Why Mozilla doesn't do this by default is beyond me Rated 4 out of 5 stars

Great idea, seem like it should be natural right?
Anyway, you should add options to disable various things on it. For example, I would like to remove the search box since it's kind of redundant when there's already a search box in the navbar.
Also, would like to scale the buttons row at the bottom smaller.

This review is for a previous version of the add-on (1.0.4.1-signed.1-signed). 

Thanks for the feedback and rating. :)
That's a great suggestion I will work on that. :)