Setting up Facebook Connect

Facebook Connect is a system that allows any user with a Facebook account to join your site easily with just one single click. It saves your visitor the hassle of registering to yet another site and maintaining another username and password. With this system, your site can easily verify the identity of your site visitor and log them into your site easily.

Follow this setup instructions :

To setup Facebook connect, you will first need to create a new application in Facebook by accessing https://developers.facebook.com/apps. You are required to have a Facebook account. At the top right, there should be a button called Create New App; click it. Give your application a name. This name will appear as your applications and you are not restricted to use any name. You will have to read through Facebook’s Terms of Service before accepting it.

You will then be redirected to your application's Basic Info page. Please be sure to fill in every detail shown in the picture below that is marked with an asterisk (*).

Do not leave the App Domain field empty. Enter the domain name as shown in the image above. Please be certain that the Site URL is in the full format, i.e: http://www.mysitedomain.com. Save the changes.
Using the Keys In JomSocial

Go to JomSocial Configuration > Facebook Connect and paste the App ID into the Facebook API Key and the App Secret into the Facebook Application Secret field.

Congratulations! JomSocial Facebook Connect is now set up on your website!