Facebook's Platform for Privacy Preferences (P3P)
Thanks for your interest in privacy at Facebook. You're seeing this message because you attempted to access Facebook's Platform for Privacy Preferences (P3P) compact policy.
The organization that established P3P, the World Wide Web Consortium, suspended its work on this standard several years ago because most modern web browsers don't fully support P3P. As a result, the P3P standard is now out of date and doesn't reflect technologies that are currently in use on the web, so most websites currently don't have P3P policies.