Aryeh Gregor wrote:
I've been meaning to investigate this, but haven't found the time yet. Have you come up with a minimal test case, or filed a bug with Mozilla? I'd be willing to look at this if I get the time, but I don't know how soon I will get the time, so it would help if someone else tried to debug it. Does it occur if you turn off JavaScript and/or CSS?
I tried with Firefox 3.5.2 on XP and still couldn't reproduce it. Reloading the page produced a CPU spike but nothing which lead me to attribute it to the reported behavior and not a normal rendering. I wonder if there might be an extension/badware checking all abbr to include ads on relevant keywords.