TIPS & TRICKS: Firefox, Bouncing Web Pages

I came across an odd phenomenon today. Everything else on the computer being normal, web pages in Firefox would bounce up and down, much like if I were moving the scroll wheel up and down rapidly. The user came in and said that it started happening when he made adjustments to toolbars. Thus, I went in and adjusted settings for toolbars and found that the built-in Firefox Bookmark Toolbar, at least on that machine, required at least one bookmark in it or it would show the bouncing behavior. The other alternative is to hide the Bookmark Toolbar altogether.