Updated mobile browser experience Tap in the top right of Facebook. Scroll down and tap Settings. Scroll down to Media. Tap Autoplay video, then tap next to Autoplay videos on Wi-Fi to turn it on or off.
Why does autoplay keep turning on?
If you're 18 or over, Autoplay is turned on by default. All users can change their Autoplay settings. You can have different Autoplay settings for different devices. For example, you can set Autoplay to be “On” in the YouTube app on your mobile device, but set it to “Off” when watching YouTube on your computer.
How Do I Stop Autoplay from turning back on?
Delete cached browser files and cookies but most importantly “site settings” close browser, reopen and turn off autoplay, Refresh youtube page and viola works again.