If you are a Flock user or are interested in "alternative" browsers, Flock, which is based upon Firefox, has recently been updated to 1.2. The new version adds several new features including integration of Digg friends and enhancements to the integrated mail. If you are interested in it, you can read about it at their site or acquire it for yourself.
Firefox has inspired the community to launch many projects based around or upon it, including some "total conversions" that try to take the browser in a completely new direction. One of those projects is Flock, which we have mentioned before. Catering to a specific subset of Firefox users, Flock is trying to convince people that the browser can truly be used as a portal to social networking.