A: That is a different issue. If you search for someone and can't find them, and you suspect they blocked you, ask a mutual friend to check. Do not use "block checker" apps—they are also scams.
The only safe path forward is the ethical one: send a friend request, ask a mutual contact, or respect the privacy boundary that the user has deliberately set. In a world where data breaches are common, being the person who respects privacy makes you the smart one—not the one who gets hacked trying to see a single, hidden photo.
Searching for "FB private profile picture viewer online" yields websites promising "instant unlocking" via a simple URL paste. These sites universally use malicious monetization and data-harvesting mechanics:
This feature ensures only your friends can see your full-size profile picture or cover photo [23]. Review Audience Settings: Regularly check your Privacy Settings
Sometimes, profile pictures are cached by search engines or visible in public search results even if the profile itself is limited [5, 9]. Browser Extensions: