I wanted an easy way to make my Facebook cover photos my background so, whenever I post a cover photo I hashtag it #background. You may want to make it #wallpaper. Or something of your choice.
If
New photo post by you with hashtag
This Trigger fires every time you post a new photo on Facebook with a specific hashtag.
Then
Update device wallpaper
This Action will update the wallpaper on your Android device from the image URL you specify.
Discover more time saving integrations for Facebook and Android Device