Facebook Messenger is a free Facebook chat client works from desktop as a Facebook messenger. Facebook Messenger 1.0 released in July 31, 2009. Facebook Messenger 1.0 file size is 16.5MB. Download Facebook Messenger 1.0. Visit Facebook Messenger website.
Facebook Messenger is a AIR based messenger for Facebook that allows you chat with your Facebook friends. After login with your Facebook ID and password in Facebook Messenger, it will list all of your online Facebook friends. Click on them to start chatting in Facebook Messenger.
Here are some more about Facebook Chat in Messenger and Facebook Instant Messenger
Facebook Messenger Related:
Facebook Chat in Messenger
Facebook Instant Messenger
Windows Live Messenger 2009
Facebook Sidebar