Facebook’s Graph API does not allow third-party developers to access private user data without explicit OAuth authorization from the account holder. Why Do These Websites Exist? (The Mechanics of the Scam)
FB private profile viewers may seem like an attractive solution for curious users, but they pose significant risks and are often against Facebook's terms of service. Instead of using these tools, consider alternative methods to access public information or respect users' privacy. Remember, online privacy is a fundamental right, and respecting users' boundaries is essential for a healthy and secure online community. fb private profile viewer
Your browser only displays what Facebook’s servers authorize it to see. Facebook’s Graph API does not allow third-party developers