Facebook Friend Mapper Chrome Extension Page
Open the extension popup. You will usually see sliders for:
Digital Safety Analysis Unit Disclaimer: This report is for informational purposes only. No specific extension was tested live; analysis is based on historical patterns and publicly documented behavior. facebook friend mapper chrome extension
Using tools that claim to "reveal hidden friends" in 2026 is highly discouraged: Open the extension popup
Facebook Friend Mapper Chrome extension was a controversial web tool designed to reveal "hidden" friend lists on Facebook profiles. It gained significant attention around 2015 for exploiting a logical flaw in Facebook's "Mutual Friends" feature, allowing users to bypass privacy settings and view a person's entire network as long as they shared at least one mutual friend. The Mechanics of the Extension Using tools that claim to "reveal hidden friends"
The was a controversial Chrome extension that gained notoriety for its ability to reveal a user's "hidden" friends list by exploiting a logical flaw in Facebook's mutual friends feature. Core Functionality and Mechanism