Hmmm, let’s see if this entry gives a boost to Google and friend for what has been a simple solution to a very obnoxious problem: using Firefox under OS X has been a major pain lately, with random crashes and nearly constant 100% CPU occupation.
Not feeling like getting back to Safari, I started googling around and after a while I found a long running issue with Flash movies, who tend to eat all the available CPU time. Installing
Flashblock seems to have cured the issue, and I’ve been using Firefox all day long without a hitch. YMMV, of course, but I’m an happy puppy again.