Google chrome can now” talk” to Firefox. This is now possible for the reason that we now have the WebRTC technology that allows your browser to access your computers microphone and camera. WebRTC is an open-source project supported by Google, Mozilla and Opera. The API and underlying protocols are being developed jointly at the W3C and IETF.
This technology brings clear crispy voice, sharp high-definition video and low-delay communication to the browser. The common objective of this technology is to help developers offer affluent, secure communications, integrated straight into their web apps.
To try out this you will need the Chrome 25 beta or the Firefox Nightly. Additionally, 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.

Watch the first “official” video demo below by Mozilla and Google Engineers.