Download Skype 5.0
and log in.then you can notice a Facebook tab shown.
If can’t see it,click ‘view’ tab shown drop down menu and click ‘ Facebook Updates’.
Then let Skype connect to Facebook by click ‘See news feed in skype’ icon,enter in your Facebook username and password to validate the connection.
You will be asking to allow Skype can access and update your Facebook account,click ‘allow’,it’s will take some time to load your Facebook feed into Skype.Now you can chat with your Facebook friend by call or sms them.