Option about double or single click would be better. Rated 4 out of 5 stars

All is good, just two more things: When you click on the url bar button and the drop-down list appears... Why do you want to simply put the selected url on the urlbar using and wasting a wonderful left click? I'd like an option to select and run the url with just one click instead of the double click. The second problem I see is the middle click, it would be great to detect if you are exactly over the input of the urlbar, not over the star button, not over other urlbar's icons.
Really really thanks.

This review is for a previous version of the add-on (4.2.6). 

Good idea

I think it's a good idea. It offers a more simple way to use addon when you don't want use keyboard. I will add it in a future update (with a new design of option panel).