If Firefox middle click scroll is not working on your PC, check these Firefox Settings first. Here is a complete guide to fix this problem ...

Follow these methods to fix the problem. Some of them will need an admin user account. Check Touchpad Status Enable Finger Scroll from Settings Touchpad Compatibility Update Touchpad Driver Check with ...

Speaking only of the default Windows & OSX mouse drivers...<BR>When I use the mouse wheel to scroll in OSX (10.5) it seems to be able to detect whether I "flick" it quickly, or slowly turn it.