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# Federated Learning of Cohorts (FLoC) **(FREE SELF)**
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60933) in GitLab Free 13.12.
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Federated Learning of Cohorts (FLoC) is a new feature of the Chrome browser.
It works by categorizing users into different cohorts, so that
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advertisers can use this data to uniquely target and track users. For more
information, visit the [FLoC repository ](https://github.com/WICG/floc ).
To avoid users being tracked and categorized in any GitLab instance, FLoC is
disabled by default by sending the following header:
```plaintext
Permissions-Policy: interest-cohort=()
```
To enable it:
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1. On the top bar, select **Menu >** ** {admin}** **Admin** .
1. In the left sidebar, select **Settings > General** .
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1. Expand **Federated Learning of Cohorts** .
1. Check the box.
1. Click **Save changes** .
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