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.

Firefox developer Mozilla has claimed its decision to reinvent the command line to make mashups easier has received an overwhelming response from developers.

"The http://addons.mozilla.org website, hosted on Mozilla servers, offers many addons to extend FireFox with additional features. The majority of these addons are not developed directly by Mozilla but by third party developers.

Today we’re announcing the launch of Ubiquity, a Mozilla Labs experiment into connecting the Web with language in an attempt to find new user interfaces that could make it possible for everyone to do common Web tasks more quickly and easily.

"Ubiquity is an experiment two parts. It’s both an interface and a development platform. Ubiquity 0.1 focuses on the platform aspects, while beginning to explore language-driven methods of controlling the browser..."

The extensible and open nature of Ubiquity means that you can easily expand its functionality by installing additional scripts that add new commands. There are dozens of Ubiquity scripts floating on the Web, but here are a few that you might find particularly useful.

Serena Software is licensing its Business Mashups software under Creative Commons licenses. Under the program, Serena will license 13 pre-built Business Mashups and will do so with others that the company builds in the future. Business Mashups serve as graphical representations of simple business processes, such as vacation requests and sales discount approvals. Key quote: "Because they're graphics, you can't use traditional software licensing rules."

Because it is based on Ubuntu, its installation program is Ubiquity, Ubuntu’s graphical installer. But the version of Ubiquity in BackBox 3 is the pre-Ubuntu 12.10 version, so full disk encryption and automatic LVM configuration are not supported.

Thanks to its extensibility, Firefox quickly became the favorite browser for most power users. But while extensions are a great way to make Firefox more functional, Mozilla's designers are also currently thinking about a complete redesign of the way the browser looks and feels, in order to keep up with changing usage patterns.