For what it's worth, JWZ said this of Mozilla a few days ago on his blog:

"Back to Mozilla -- in my humble but correct opinion, Mozilla should be doing two things and two things only:

1. Building THE reference implementation web browser, and

2. Being a jugular-snapping attack dog on standards committees.

3. There is no 3."

http://archive.is/umaau (edit, using archive link)

I couldn't agree more.