Alex313031/Mercury
Firefox fork with compiler optimizations and patches from Librewolf, Waterfox, and GNU IceCat. observed · 2026-08-28
Health v2 · maintenance only
66/100
- Activity 96
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 1522
- days_rel: 715
- days_push: 24
- n_releases_24m: 1
Adoption not part of the score
1539 stars · 42 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Mercury is a Firefox fork with compiler optimizations (AVX, AES, LTO, PGO) and privacy/security patches drawn from LibreWolf, Waterfox, Ghostery, and BetterFox. It is the Firefox counterpart to the author's Thorium Chromium fork, claiming 8-20% performance gains over vanilla Firefox.
Use cases
- faster firefox build optimized for my cpu with avx
- privacy hardened firefox without mozilla telemetry
- firefox fork with librewolf and waterfox patches combined
- portable browser with preconfigured user profile
- alternative to thorium but for firefox users
When to choose
- you want a compiler-optimized Firefox build for Linux or Windows
- you want privacy patches from multiple Firefox forks pre-applied
- you want a portable browser with a self-contained profile directory
When to avoid
- you need macOS support
- you want official Mozilla support or auto-updates from Mozilla
- you prefer stock Firefox stability over patched builds
Facets
application · maturity active
security privacy developer-tools privacy web-development cross-platform windows firefox-fork web-browser compiler-optimizations avx pgo lto privacy-hardening linux desktop
2 sources
- readme: https://github.com/Alex313031/Mercury · fetched 2026-08-28 · 7d6f6a45e0dc
- homepage: https://thorium.rocks/mercury · fetched 2026-08-29 · e170fd1c2a79
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Alex313031/Mercury | main | 66 |
For agents
markdown · JSON · MCP: product_card(name="Alex313031/Mercury")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem