Facebook autoplay videos might eat up a lot of your cellular data. Here's how you can stop them from playing over your iPhone or iPad's cellular connection.
1. Go to Settings.
2. Go to Facebook.
3. Go to Settings.
4. Under the Video section, toggle the "Auto-play on WiFi only" switch to the on (green) position.
Right now you cannot turn off autoplay videos on Facebook completely. But you can at least stop them from costing you money by running up your cellular bill.
Read more: CNet
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