A little FYI for everyone, since there are articles out today, how people were never told about the hidden little feature that turns off video auto-play for Facebook. See below for the instructions how to disable.
In the iPhone/IPad App, you have to go to Settings for the device, then scroll down to "Facebook", then select to go into the Facebook settings for iOS. Then choose "Video". Then just turn off or set to Wifi.
For Android devices, it is in the App settings (three horizontal bars), then scroll down to "App Settings", choose "Video Auto-Play" to change auto-play setting.
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