# mozilla-firefox/firefox

The official repository of Mozilla's Firefox web browser.

Repository: https://github.com/mozilla-firefox/firefox
Canonical: https://ross.abutalabs.com/products/firefox
Homepage: https://www.firefox.com/
Language: JavaScript
License: NOASSERTION
License Family: other
Last push: 2026-08-27T00:11:27+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 54
- inputs: {"age_days": 765, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 12971, forks 1442 (observed 2026-08-28T04:11:00.269862+00:00)

## What it is
Firefox is Mozilla's free and open-source web browser built on the Gecko engine, available for desktop and mobile platforms. It emphasizes privacy with built-in tracking protection, fingerprinting resistance, private browsing, and a password manager.

## Use cases
- browse the web privately without being tracked
- block ads and third-party trackers
- manage and sync passwords across devices
- prevent browser fingerprinting
- use a browser with private browsing mode
- customize browsing with extensions and themes
- develop and test web pages against Gecko

## When to choose
- you want a privacy-focused browser with default tracking protection
- you need a cross-platform browser including Linux and mobile
- you want to contribute to or build an open-source browser engine
- you prefer a browser from a non-profit organization

## When to avoid
- you need Chromium-specific compatibility or Chrome Web Store extensions natively
- you want a minimal browser without built-in features
- you need a headless-only automation tool rather than a full browser

## Facets
- artifact type: application
- maturity: active
- function: browser-extension, security, privacy, gui
- domain: web-development, privacy, security, cross-platform
- platform: windows, cross-platform
- tags: web-browser, gecko, mozilla, privacy-protection, open-source-browser, tracking-protection, linux, macos, android, ios

## Member repositories
- mozilla-firefox/firefox (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:00.269862+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:13:38.678903+00:00, confidence not recorded.
  - readme: https://github.com/mozilla-firefox/firefox (fetched 2026-08-28T04:11:00.269862+00:00, sha 4ae68b931b05)
  - homepage: https://www.firefox.com/ (fetched 2026-08-29T08:09:51.381487+00:00, sha 7e5538af6c7d)
  - site_page: https://www.firefox.com/en-US/features/adblocker (fetched 2026-08-29T08:09:51.396297+00:00, sha 870ca17ed50e)
  - site_page: https://www.firefox.com/en-US/features/private-browsing (fetched 2026-08-29T08:09:51.399453+00:00, sha 49d21610abb4)
  - site_page: https://www.firefox.com/en-US/features/password-manager (fetched 2026-08-29T08:09:51.402731+00:00, sha e3543b160fa8)
  - site_page: https://www.firefox.com/en-US/features (fetched 2026-08-29T08:09:51.390906+00:00, sha a7cff4ff7a12)
  - site_page: https://www.firefox.com/en-US/features/block-fingerprinting (fetched 2026-08-29T08:09:51.393715+00:00, sha 5d1f52f619ce)
- Data as of 2026-08-30T08:39:29.467469+00:00.