[gkoberger]

The linked page is currently down, however you can see release notes here: http://www.mozilla.com/en-US/firefox/4.0b9/releasenotes/

Or, there's a style-less Google cache of the actual blog post: http://webcache.googleusercontent.com/search?sclient=psy&...

[limi]

It was down for a short while (don't launch software on a US long weekend ;), but is back now.