Gecko (Seamonkey, Firefox)
mousewheel.withcontrolkey.action = 0
mousewheel.withshiftkey.action = 0
mousewheel.withnokey.action = 0 (should be by default)
mousewheel.withaltkey.action = 0

alt is meta. In Windwos "Alt" key, in Linux sometimes "Win" or other
depending on configuration


