Google Groups Fix (gg:fix) Not Working with FF 4.0.1

I have used gg:fix for a long time to get rid of the "third column" in
the Google Groups message list page and it works great! But since I
upgraded to FF 4.0 it doesn't work correctly anymore. It hides the
content of the third column, but the column is still there taking up
space. I can find the web page that lets you download this code, but
it doesn't look like it has been updated to work with FF 4.0.

Anyone know anything about gg:fix with FF 4.0?