While Firefox developer Madhava Enros posted some of the new look when the original announcement was first made in the spring, this week Mozilla Software Engineer Jared Wein took those images a step further with a close-up look at the Australis tabs currently being added to the Windows version of the open source browser.

A test build previewing the new look in Firefox 16 for Windows is available now as a free from a post on Wein's blog site.

'A Fresher User Interface'

Australis “brings with it more customizability in a cleaner and fresher user interface,” Wein explained in a separate Monday on the topic. “One part of this work is a new implementation of our tab shape.”

Specifically, gentle curves will be a hallmark of the new interface, appearing in the desktop version's tab bar along with mobile versions' navigation bar.