Scrolling is very slow (like half of a line per wheel movement) on my firefox on Mac OS X Mountain Lion, when i just scroll slowly. The transition to accelerated scrolling when I scroll faster is quite harsh (if smooth scrolling is enabled). So turning the wheel slowly is to slow and scrolling a bit faster is too fast too soon for my tase, so scrolling on a page is quite cumbersome for me. This effect is regardless of 'smooth scrolling', so it has nothing to do with bad performance. How am I able to change this behavior? I've tried the settings mousewheel.withnokey.numlines (integer, any number) and mousewheel.withnokey.sysnumlines (bool, false). They don't have any effect on scrolling at all. I've tried to change my system preferences for scrolling. No effect either. I've tried those with Firefox 17 (Release) 18 (Beta) and 19 (Aurora) after deleting my profile, so without any addons. Is there something i missed or is it just broken?