One of the features of the version 22 of Firefox is full WebRTC support, which was only supported partially up until now. Through WebRTC, a Web Real-Time Communication API, users can place VoIP calls, share files, video chats through to the browser.

Some of the other features include HTML5 Audio/Video playback speed modifications for the built-in player, social improvements, performance improvements including JavaScript, and new HTML5/CSS3 enhancements.

There have been some changes in the browser – prominent among those are use of the new web notifications API, ASM.js optimizations, and support for pointer lock API outside of the full-screen mode among others.

We will update you on the official release announcement once its out, up until then stay tuned.