Yes, Minefield. What is Minefield? Minefield is the codename of Mozilla's next version; it is the next step for Firefox. It is the pre-beta version of Firefox 3.1. I am currently tunning Firefox 3.1b2pre. There's a few changes between 3.0.4 and 3.1b2pre. The main difference is called TraceMonkey. TraceMonkey is the new Java engine built into Minefield (SpiderMonkey was the old one), and it is wicked fast. It is not enabled by default, so you have to turn it on yourself through about:config (instructions here). I used Nightly Tester Tools to bring along my extensions, so I am good to go. Vroom, vroom. Oh, if anyone is interested, click HERE.