# Fennec F-Droid privacy rating

Build of Firefox for Android published by F-Droid, with proprietary components and telemetry removed. It still connects to some Mozilla services.

## Summary

Fennec F-Droid scores 57 out of 100 (grade D) on the browsers criteria. It meets 2 of 8 criteria: open source and no ads or data sales. It partly meets no trackers or telemetry, blocks trackers by default, fingerprinting protection, no calls to big-tech services and timely security updates. It does not meet independent audit.

- Website: https://f-droid.org/packages/org.mozilla.fennec_fdroid/
- Source code: https://gitlab.com/relan/fennecbuild
- Platforms: Android
- Category: [Browsers](https://privacyratings.com/browsers/)
- Grade: D (57/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes | Build scripts are AGPL-3.0, and Firefox code is MPL-2.0. | https://gitlab.com/relan/fennecbuild/-/blob/master/COPYING |
| No trackers or telemetry | Partial | Telemetry is removed, but F-Droid flags the app for connecting to Mozilla services that can track users. | https://f-droid.org/packages/org.mozilla.fennec_fdroid/ |
| No ads or data sales | Yes | Sponsored shortcuts and sponsored stories are disabled in the build. Volunteer project. | https://gitlab.com/relan/fennecbuild/-/blob/master/fenix-liberate.patch |
| Independent audit | No | No independent audit is published. |  |
| Blocks trackers by default | Partial | Uses Firefox Enhanced Tracking Protection in Standard mode, which blocks social trackers and cross-site cookies but not all tracking content. | https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-android |
| Fingerprinting protection | Partial | Known fingerprinters are blocked, but fingerprinting data is only altered in Strict mode or private tabs. | https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting |
| No calls to big-tech services | Partial | Google Play components are removed, but Firefox's Google Safe Browsing lists and some Mozilla services remain. | https://f-droid.org/packages/org.mozilla.fennec_fdroid/ |
| Timely security updates | Partial | New Firefox versions usually reach F-Droid within about a week and are installed through an F-Droid client. | https://f-droid.org/packages/org.mozilla.fennec_fdroid/ |

Source: https://privacyratings.com/browsers/fennec-f-droid/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/browsers/fennec-f-droid.md