Facebook Friend Mapper Chrome Extension -

In 2015, a developer named Alon Kollmann released a Chrome extension called Facebook Friends Mapper

This tool exists specifically to undermine privacy controls. Using it is considered unethical as it ignores the explicit consent of other users to keep their data private.

Warning: Using third-party extensions that interact with Facebook can lead to account suspension or data privacy issues. How to Protect Your Friends List in 2026 facebook friend mapper chrome extension

The extension's primary draw is adding a "(Reveal Friends)" button to the Friends tab on any Facebook profile, even if the user has set their list to "Only Me".

The Facebook Friends Mapper was a free browser extension for Google Chrome created by a developer named Alon Kollmann. First appearing on the Chrome Web Store around 2015, it was a highly controversial tool that promised a feature the platform didn't officially provide: the ability to bypass privacy settings and reveal the of nearly any Facebook user. In 2015, a developer named Alon Kollmann released

It reconstructs and displays the hidden friend list.

The mechanics behind the Facebook Friend Mapper relied on graph theory and the public availability of mutual friend data. Even if a specific user hid their friend list, many of their friends likely kept their own lists public. How to Protect Your Friends List in 2026

While Facebook Friend Mapper is a powerful tool, you may encounter some issues. Here are some common problems and solutions:

Once installed, a "Reveal Friends" button appeared directly on a user’s profile tab, allowing anyone to see their connections regardless of privacy settings. The "Creepy" Relative: Marauder's Map

If you let me know, I can give you tips on how to increase your privacy in 2026. Friend Maker | Toolkit for Facebook - Chrome Web Store