Facebook Spam: Zscaler Tool for "LikeJacking" Protection

This post describes the Likejacking clickjacking technique that hides Facebook widgets and presents the Zscaler Likejacking Prevention browser extension (Firefox, Chrome, Safari) as a defense. The extension detects and flags pages with hidden Facebook widgets (red/green UI indicator), can expose hidden widgets, requires explicit user confirmation for widget actions, supports domain allowlisting and reporting, and is intended to protect users on third-party sites rather than altering Facebook itself.