How can I stop an account from automatically linking with Facebook?

Is it possible for a friend to use an old account of mine (which I let him use) and connect it with my facebook account, even though I already have another new account linked to that same facebook account?
I seem that when he uses my old account, it will still connect to my facebook. I told him not to link it but it still automatically connects and displaces my new account. How can I stop this from happening?
He has iOS, I have android.
Best Answer
You have 2 options:
- Disable linking from Facebook in Clash of Clans (Go to Settings, and you'll find it easily)
- Like @Kovah said, delete the app from Facebook (In the left menu > Applications)
As far as I know, it's the same process whether you're on Android or iOS.
Pictures about "How can I stop an account from automatically linking with Facebook?"



How do I disable a linked Facebook account?
Go to "account settings." Click "apps" on the left-hand sidebar. Click the "X" on the right of each app to revoke access to your data. Confirm "remove" when the window prompts you to do so.How do I find out what accounts are linked to my Facebook?
Tap in the top right of Facebook. Tap Settings & Privacy, then tap Settings. Scroll down and tap Accounts Center. Tap Logging in with accounts.❌ How to REMOVE AUTOMATIC LOGIN in facebook
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Karolina Grabowska, Karolina Grabowska, Karolina Grabowska, Karolina Grabowska