Keenko enables you to simultaneously monitor which of your Facebook and Twitter friends are online.Keenko also allows you to find out how you can easily chat with your online friends, without leaving the web pages that you are currently browsing.Moreover, the with Keenko you can see who is watching the same website at the same time as you and easily check their Facebook and Twitter profiles.Note: The Keenko add-on is cross-platform and it works on Mac OS X, Windows and Linux.
Requirements: · Firefox 3.0 to 4.0b8pre