This tutorial is aimed toward Joomla Users who are using the Easy Blog App and already have it installed. You can post your latest news automatically by using the built-in sharing feature in EasyBlog.
To setup your easyblog so that posts go directly onto your Facebook page, you will need to login to facebook first and then with your blog open in another tab, click on blog settings.
1) Then scroll down and quick on the Login with Facebook button
2) a new window/tab will open asking you to give permission to use the app.
3) click allow.

you’re done.