It has been a long time since I spend a lot of quality time with Digg.com, but I know a lot of you might be excited to see they released a new toolbar for Firefox 3.  You can divide things into two major features, the new notifications and the toolbar itself.

Digg Firefox 3 Extension from Kevin Rose on Vimeo.
Here are Digg’s official descriptions of these two new key features:
Notifications: No matter where you are on the web, you can discover [...]