A: Viewing publicly accessible data is legal. Downloading and using it for fraud, impersonation, or commercial use without consent is illegal.
https://platform-lookaside.fbsbx.com/platform/profilepic/?asid=123456789&height=200&width=200&ext=123456789 facebook full link size profile picture viewer
If you’ve ever tried to save a friend’s Facebook profile picture, you know the frustration. You right-click, hit "Save image as," and end up with a blurry, pixelated mess the size of a postage stamp. Facebook’s default compression is notorious for scaling down images to 160x160 pixels or smaller on your timeline. A: Viewing publicly accessible data is legal