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

• Auto-generate short labels (e.g., “College friends,” “Work,” “Family,” “Local neighbors”) based on top shared attributes and keywords.
• Provide confidence score and which attributes drove the label.

❓ Does this violate Facebook’s terms?
This extension only accesses data you can already see on your Facebook friends page. It does not automate interactions, post anything, or collect data for third parties. Use responsibly.

Scan your Facebook friends' locations?

1. Interactive Map: The extension displays a interactive map that shows the user's friends and their locations. Users can zoom in and out, pan, and click on individual friends to view their profile information.
2. Friend Clustering: The extension uses a clustering algorithm to group friends who live in the same area, making it easier to visualize large numbers of friends.
3. Distance Calculations: The extension calculates the distance between friends and displays it on the map, giving users an idea of how close or far apart their friends are.
4. Color-Coded Friends: Friends are color-coded based on their relationship status, making it easy to distinguish between friends, acquaintances, and family members.