You can download OAuth Client module zip file for Drupal 7 from here.
Please Note: It is mandatory while configuring Facebook as an OAuth Server that your Callback/Redirect URI should be https and not http.
Congratulations, you have successfully completed your Facebook OAuth Server side configurations.
Please note: This step is mandatory for your login to work. Click on the Save button on the bottom of the page to save your attribute configurations.
Congratulations, you have successfully configured the miniOrange Drupal 7 OAuth Client module.