The Firefox and Chrome teams have announced that their respective browsers can now communicate with each other
for the purpose of audio and video communication without needing a third-party plugin
WebRTC is a new set of technologies that brings clear crisp voice, sharp high-definition (HD) video and low-delay communication to the web browser. From the very beginning, this joint WebRTC effort was embraced by the open web community, including engineers from the Chrome and Firefox teams. The common goal was to help developers offer rich, secure communications, integrated directly into their web applications. In order to succeed, a web-based communications platform needs to work across browsers. Thanks to the work and participation of the W3C and IETF communities in developing the platform, Chrome and Firefox can now communicate by using standard technologies such as the Opus and VP8 codecs for audio and video, DTLS-SRTP for encryption, and ICE for networking. To try this yourself, you’ll need desktop Chrome 25 Beta and Firefox Nightly for Desktop. In Firefox, you'll need to go to about:config and set the media.peerconnection.enabled pref to "true." Then head over to the WebRTC demo site and start calling."