glad you brought up this topic scott_w. I've had some issues with FF + Audiogon but like another member wrote the issue seems to be better since upgrading to the latest FF version.
For me even worse than Audiogon is Flickr - as I'm cruising thru photos in my various groups FF freezes after scrolling thru about a dozen pix. Then it crashes, pops up a window that says "oops, this is embarrassing your session crashed due to a script that stopped working..."
I've had that same sort of issue streaming shows from CBS's website.