When smooth scrolling is enabled (general.smoothScroll=true) you sometimes can´t scroll to the very top of a page. The only way to get there when this happens is dragging the scrollbar directly. Mousewheel and keys don´t work. Steps to reproduce: 1. Enable smooth scrolling. 2. Load a web page that is longer than the browser window. 3. Scroll up and down with the mousewheel or cursor keys. Try to scroll to the very top of the page several times. Keep an eye on the scrollbar. Sometimes the scrollbar doesn´t reach the top (missing it by 1 pixel). 5. When you drag the scrollbar with the mouse this last pixel, you can see that the content area hasn´t in fact reached the beginning of the page. This also happens with in <textarea>s and <iframe>s. I´m reporting this with build 2003032708, but this bug existed since smooth scrolling was initially checked in.

Also happens with Linux -> All/All

agreed. winxp - 20030401 (1.4a release)

This is fixed by the patch in bug 198987. *** This bug has been marked as a duplicate of 198987 ***