- Open Facebook App in your Android device.
- On the top right corner tab on the “Menu” button
- Scroll down and look for “Setting & Privacy”, Tap there.
- Now look for “Settings” and tap there.
- Scroll down and look for “Media & Contacts”, Tap there.
- Look for “Auto Play”, Tap there.
- By default it will be “On mobile date and Wi-Fi Connections” change it to “Never Auto Play Videos”
And you are done.