{
  "slug": "firefox-focus",
  "category": "browsers",
  "name": "Firefox Focus",
  "description": "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.",
  "website": "https://www.firefox.com/en-US/mobile/focus/",
  "source": "https://github.com/mozilla-firefox/firefox/tree/main/mobile/android/focus-android",
  "license": null,
  "platforms": [
    "android",
    "ios"
  ],
  "jurisdiction": {
    "code": "US",
    "name": "United States",
    "eyes": "Five Eyes",
    "eu": false,
    "gdpr": false,
    "cloud_act": "provider"
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "D",
  "score": 55,
  "coverage": 100,
  "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.",
  "url": "https://privacyratings.com/browsers/firefox-focus/",
  "markdown": "https://privacyratings.com/browsers/firefox-focus/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://github.com/mozilla-firefox/firefox/blob/main/LICENSE",
      "note": "MPL-2.0."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "no",
      "evidence": "https://reports.exodus-privacy.eu.org/en/reports/org.mozilla.focus/latest/",
      "note": "Exodus finds Mozilla Telemetry and Sentry crash reporting in the Android app, and a daily usage ping is sent by default unless turned off."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "partial",
      "evidence": "https://www.mozilla.org/en-US/privacy/firefox-focus/",
      "note": "The app shows no ads, but Mozilla earns revenue from the default search engines, whose results pages carry ads."
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "No independent audit is published."
    },
    "transparency_report": {
      "title": "Transparency report",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "user_notice": {
      "title": "Tells users about requests",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "tls": {
      "title": "TLS configuration",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "security_headers": {
      "title": "Security headers",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "web_standards": {
      "title": "Modern web standards",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "tracker_blocking": {
      "title": "Blocks trackers by default",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://www.firefox.com/en-US/mobile/focus/",
      "note": "Blocks advertising, analytics, social and other trackers by default."
    },
    "fingerprinting_protection": {
      "title": "Fingerprinting protection",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "Blocks known fingerprinting scripts, but no randomization or standardization of fingerprinting data is documented."
    },
    "no_google_services": {
      "title": "No calls to big-tech services",
      "weight": 2,
      "answer": "partial",
      "evidence": "https://www.mozilla.org/en-US/privacy/firefox-focus/",
      "note": "Uses Google Safe Browsing, and Google is the default search engine, which can be changed."
    },
    "security_updates": {
      "title": "Timely security updates",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://www.mozilla.org/en-US/security/advisories/",
      "note": "Releases follow Firefox security releases and install automatically through the app stores."
    }
  },
  "tests": {
    "ssllabs": null,
    "observatory": null,
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [
      {
        "name": "Google Tag Manager",
        "host": "inline code",
        "effect": "no"
      }
    ],
    "tested_at": "2026-10-01T07:02:36.691Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}