The original Facebook Friends Mapper Chrome extension is no longer available on the official Chrome Web Store because the privacy exploit it used—exploiting mutual friend data to reveal "hidden" friend lists—was patched by Facebook years ago.
If you are trying to map friends for legitimate purposes (like sociology research or organizing events), consider these safer alternatives: facebook friend mapper extension download top
Security experts have long warned against downloading "mapper" extensions due to severe privacy and safety risks: The original Facebook Friends Mapper Chrome extension is
The Facebook Friend Mapper is an outdated and potentially unsafe Chrome extension. While it was originally designed to exploit a logical flaw in Facebook's system to reveal "hidden" friend lists, users should exercise extreme caution as such tools often violate privacy policies or can be malicious. Status and Safety Warning Status and Safety Warning The original "Facebook Friend
The original "Facebook Friend Mapper" was a popular Google Chrome extension that exploited a specific loophole in Facebook’s privacy settings. It allowed users to see the "hidden" friend lists of people they weren't friends with, provided they had at least one mutual friend who also used the extension.