This add-on with the odd name extends the smooth scrolling of the browser by making it more tweakable. You can even edit scrolling via the keyboard too! I personally found this add-on to be much better than any other smooth scrolling add-on for Firefox out there today.
Do any of these issues bug you?
- Step size for scrolling by the cursor keys is so short.
- A built-in smooth scrolling is somewhat less sensitive and laggy.
- When you flick a wheel so quick, scrolling should move farther but just count ticks of a wheel.
If so, you should really give this fantastic add-on a shot. You can pick up this add-on from the Firefox Add-ons website.