To disconnect from Facebook, you will need to do so through their website, or the Facebook app.
From the Facebook app on your device:
- Open the menu (3 horizontal bars)
- Select "Settings and Privacy" -> Settings
- Select "Apps & Websites"
- Select "Logged in with Facebook"
- Select the app from the list
- Scroll down to "Remove" at the bottom of the page and confirm removal
To remove a game you've connected to Facebook:
- Click on the triangle in the top, right-hand corner to show the drop down menu and select "Settings"
- 2. Click "Apps & Websites" in the left menu
- Select the app and then click the "Remove" button
You may need to close and then open the game to reflect this change and reconnect to Facebook if you choose.