Firefox and the middle mouse button
 

If you want to scroll in Firefox for GNU/Linux like you do with Windows then here is how its done.

1) In the address bar type (without quotes) "about:config" then press enter

2) In the filter bar type (w/o quotes):
"autoscroll". 1 item should be in the list labeled general.autoScroll

3) Double click "general.autoScroll"

Now restart Firefox or whenever you feel like it and the middle mouse button will be set the same as Windows.

Well I hope this is useful!

What way is that?

The scroller.