Facebook just released their new Product Video Calling, or Video Chat. The new features of Facebook needs plugin installation, before using it. Below are the ways on how to enable it:
1. Visit the official Facebook Video Chat Page (http://www.facebook.com/videocalling)
2. Click Get Started
3. After Clicking the Get Started Button, Click some of your friends on the Chat List then, click the CAMERA icon on your friends Window Chat.