Horizontal Scroll Bug in Firefox
An annoying bug in Firefox is that it detects the horizontal scroll sent by synaptic as the back/forward actions rather than scrolling. To fix this you need to go into firefox and type about:config in the location bar. And then filter for mousewheel.horizscroll.withnokey.
You need to set the action to be 1 (2 is forward/back) and set sysnumlines to true.
so it should look like:
mousehweel.horizscroll.withnokey.action = 1
mousewheel.horizscroll.withnokey.sysnumlines = true
and then you will be able scroll properly!
You can also disable the scroll completely if you don’t want it at all by adding Option “HorizScrollDelta” “0″ to the input section of xorg.conf
