Facebook Messenger lets you bring a Facebook Messenger right into your browser to chat with your friends. You should see a Facebook Messenger sidebar right side of the Firefox interface. Please login Facebook to start using Facebook Messenger. The sidebar will remain open and you will be able to see the online status of your friends and chat with them instantly without leaving your web experience. Facebook Messenger is a helper tool for Facebook users.
What's new in version 1.4
ReleaseFebruary 20, 2013
Date AddedFebruary 23, 2013
Operating SystemsWindows 2003, Windows Vista, Windows, Windows 7, Windows XP