# Firefox Focus privacy rating

Browser from Mozilla for Android and iOS that blocks trackers by default and erases history, cookies and passwords with one tap. Sold as Firefox Klar in some countries.

## Summary

Firefox Focus scores 55 out of 100 (grade D) on the browsers criteria. It meets 3 of 8 criteria: open source, blocks trackers by default and timely security updates. It partly meets no ads or data sales and no calls to big-tech services. It does not meet no trackers or telemetry, independent audit and fingerprinting protection. It is based in the United States: Five Eyes member; subject to the US CLOUD Act.

- Website: https://www.firefox.com/en-US/mobile/focus/
- Source code: https://github.com/mozilla-firefox/firefox/tree/main/mobile/android/focus-android
- Jurisdiction: United States. Five Eyes member. Subject to the US CLOUD Act.
- Platforms: Android, iOS
- Home page trackers: Google Tag Manager
- Category: [Browsers](https://privacyratings.com/browsers/)
- Also rated: [Firefox Private Relay](https://privacyratings.com/email-forwarding/firefox-private-relay/) (Email forwarding and aliases), [Firefox](https://privacyratings.com/browsers/firefox/) (Browsers), [Facebook Container](https://privacyratings.com/browser-extensions/facebook-container/) (Browser extensions), [Firefox Multi-Account Containers](https://privacyratings.com/browser-extensions/firefox-multi-account-containers/) (Browser extensions), [Mozilla VPN](https://privacyratings.com/vpns/mozilla-vpn/) (VPN providers), [Firefox Translations](https://privacyratings.com/translation/firefox-translations/) (Translation)
- Grade: D (55/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes | MPL-2.0. | https://github.com/mozilla-firefox/firefox/blob/main/LICENSE |
| No trackers or telemetry | No | Exodus finds Mozilla Telemetry and Sentry crash reporting in the Android app, and a daily usage ping is sent by default unless turned off. | https://reports.exodus-privacy.eu.org/en/reports/org.mozilla.focus/latest/ |
| No ads or data sales | Partial | The app shows no ads, but Mozilla earns revenue from the default search engines, whose results pages carry ads. | https://www.mozilla.org/en-US/privacy/firefox-focus/ |
| Independent audit | No | No independent audit is published. |  |
| Blocks trackers by default | Yes | Blocks advertising, analytics, social and other trackers by default. | https://www.firefox.com/en-US/mobile/focus/ |
| Fingerprinting protection | No | Blocks known fingerprinting scripts, but no randomization or standardization of fingerprinting data is documented. |  |
| No calls to big-tech services | Partial | Uses Google Safe Browsing, and Google is the default search engine, which can be changed. | https://www.mozilla.org/en-US/privacy/firefox-focus/ |
| Timely security updates | Yes | Releases follow Firefox security releases and install automatically through the app stores. | https://www.mozilla.org/en-US/security/advisories/ |

Source: https://privacyratings.com/browsers/firefox-focus/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/browsers/firefox-focus.md