How to disable Facebook video auto-play on Android, Here is the way to go for disabled Facebook video auto-play on Android. yet another Facebook feature that can be quite annoying: video auto-play. Not only do you not always want to see what people are showing, but this also uses up more of the data and battery of your Android. Here is how to disable this feature on Android.
STEPS TO DISABLE FACEBOOK VIDEO AUTO-PLAY
1. First, swipe to the furthest tab on the Facebook app
2. Then tap on App Settings.
3. Right there under the General Settings,
4. tap on ‘Video Auto-Play’ and
5. set it to Off.
6. Of course, Facebook has it defaulted to On, but not anymore.
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https://newsdailytech.com/2018/10/04/how-to-disable-facebook-video-auto-play-on-android/