Ubiquity is a very popular Firefox extension that adds a flexible natural language command line to Firefox, and is developed by the folks at Mozilla. It's now out in a more useful new version, with a sleeker look, a more stable core, and the ability to create good looking skins. If you're familiar with using the Awesome Bar in Firefox, you'll take to Ubiquity quickly, although it pays to spend a little time learning how its commands work. Here's a peek at the new version.