Digg just got a bit more powerful with a Firefox 3 extension that broadens its reach across the Internet. As seen in the Kevin Rose-narrated video below, the extension adds a toolbar and web-wide notifications. It's a very cool way to see and drive Digg coverage on stories that you may already be reading online, and to then follow the Digg commentary.
Digg Firefox 3 Extension from Kevin Rose on Vimeo.
It's very cool to see services like Digg taken out of the "website" context and turned into web-wide applications. It's even better to see them enabled in an open-source browser like Firefox, especially when the toolbar is open source.