I am using Firefox 2.0. I forgot that I am using the
Long Titles extension (I originally got it so I could read the entire tooltips on the
xkcd comics). The only negative side effect is that it produces some ugly-looking blocks of text on CD. So ignore my complaint-- if I get sufficiently annoyed, I'll just turn the extension off.
Edit:
Mozilla bug 45375 and
Firefox bug 218223 (which cause long tooltips to be broken with "...") are both fixed in Firefox 3.0alpha4 and SeaMonkey 1.1beta. So with the release of FF 3.0, my problem will soon become everyone's problem. Just a heads-up.