Middle Mouse Button
 

Hi,
I have a Logitech Performance MX mouse and i'm running Xfce+Compiz+Firefox all i want is for the zoom button to emulate a middle mouse button.
I've searched all over for a solution nothing works not xbindkeys not xte not xdotool...
Like in windows i want that button to open new links in tabs and offer page scrolling in Firefox.
The button code is 13 i.e. b:13 i can see it's clicking but it doesn't work in firefox.
Please help.

Doesn't pressing both buttons (left, right) at the same time emulate the (non-existent) middle button?
jdk