smooth scrolling ができる模様。
Mozilla now has smooth scrolling. It is disabled by default.
To enable it, use about:config to add the boolean preference
general.smoothScroll with a value of true. To disable smooth
scrolling, set the value of the pref to false.
- Netscapeソース公開から5年、Mozilla 1.4 alphaリリース
http://slashdot.jp/articles/03/04/02/0439229.shtml?topic=51