Create Facebook App ID

Facabook Like Button extension requires you to create Facebook App ID before you start using this extension.

Here you can find Step-by-step instruction from Facebook.

As a platform you have to choose - Website. And do not forget to specify your website at App Settings and Website section.

In case there are still some questions left you can check this youtube video - How To Create Facebook App.

Go to Facebook Like Button configuration and paste App ID and Secret Key there.