nofloc is a free WebExtension developed by Julien and Sphinx. It is designed to disallow FLoC (Federated Learning of Cohorts) by adding the proper HTTP Header. FLoC is a new tracking technology introduced by Google in Chrome that groups users into cohorts based on their browsing behavior.

By installing nofloc, users can opt out of FLoC and prevent their browsing activity from being used for targeted advertising or tracking purposes. This WebExtension is open source, and users are encouraged to review its code on GitHub before installation.

With nofloc, users can regain control over their online privacy and ensure that their browsing behavior remains private and anonymous. It is a valuable tool for those who are concerned about their online privacy and want to protect themselves from invasive tracking technologies.