Perfect now Rated 5 out of 5 stars

Since the bug has been resolved, i don't see anything else to not give it the best note.

This review is for a previous version of the add-on (3.1.2). 

Rated 1 out of 5 stars

If I only give 1 star, it's more to get attention on what follow : since Firefox 15, sometimes when i used the grab and drag to scroll on pages, it blocks all my clicks, regardless of the button i press on my mouse. And the only way to get rid of this situation is to restart firefox.
It greatly annoys me since i usually used this addon everytime.

This review is for a previous version of the add-on (3.1.0). 

Rated 5 out of 5 stars

Very useful to visualize large webpage and/or large image.

This review is for a previous version of the add-on (2.7.6).