Rated 1 out of 5 stars

https://addons.mozilla.org/hu/firefox/addon/6366
Firegestures can do the same, and you can disable other shits if you dun like, and its not bugged, working well (better than this)

This review is for a previous version of the add-on (1.0.2). 

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Hopefully the bugs you mentioned was fixed in 1.0.1. If not, please let me know. Thats why its still in sandbox :)
Firegestures and others similar addons conflicts with the addon: ScrollbarAnywhere which I use alot.