Skype have teamed up with Facebook to allow video chat from the social network. This Facebook Video Call Plug-in Installer will install the plugin you need for your browser.
All you have to do to install Video Chat is download this Facebook Video Call Plug-in Installer, then double click it to start the process. Once finished, as long as you have a camera and microphone, you'll be able to video chat without leaving your browser.
The installation is easy enough, but bugs with the system might mean you have to uninstall the plugin and repeat.
Download this plugin to get video calling on Facebook.