Fire Gestures is a customizable mouse gestures extension which enables you to execute various commands and user scripts with five types of gestures.
This is a MUST HAVE add on if you use Mozilla Firefox. This makes my internet life so much easier. Instead of clicking on (forward, back, refresh, open in new tab, Etc) all you have to do is draw a line with a “Right-Click” on your mouse. Im TELLING YOU, download this it is free.