Running the GTK Milk 2.0 theme, which includes up and down arrow thingies at the bottom of the scrollbar. Firefox will draw the up arrow at the bottom but treats the area as though it is a part of the trough rather than a button. So if I try and click that particular scroll up button the browser window actually jumps down as if I'd clicked in the trough. The same thing happens with the bottom scrollbar and the left button. The buttons work properly in other GTK applications like gAIM. Reproducible: Always Steps to Reproduce: 1. Install a theme with mac-style scroll buttons 2. Try to scroll up using the bottom up arrow (wow that's a confusing sentence) 3. Stare in slack-jawed amazement as your page actually pages down
Created attachment 26642 [details] screenshot showing non-functional scroll buttons for clarification
This is an upstream bug, nothing we're going to fix at the distribution level. If it still causes problems for you in current (mozilla-firefox-1.0-r1) releases then feel free to take it to bugzilla.mozilla.org