Camoufox

Camoufox is a modified, debloated Firefox build created for automation that needs to look like a real human browser. Instead of patching fingerprints through injected JavaScript, which leaves detectable traces, it modifies navigator properties, WebGL parameters, screen metrics, fonts, WebRTC, geolocation, timezone and locale values at the C++ implementation level, before a page can inspect them.

The project is built for scale and stealth. It runs on roughly 200MB of memory against Chrome's 800MB+, removes telemetry, background services, CSS animations and other noise, and ships as a PyPI package that injects fingerprints automatically. Existing Playwright scripts can be pointed at Camoufox with minimal changes, and it works with proxy providers and tools for geo-targeted sessions.

Consistency is treated as a first-class feature: Camoufox uses BrowserForge to rotate device characteristics that match real-world traffic distributions, so a Windows user agent never appears alongside an Apple GPU. It is built on Firefox rather than Chromium partly because anti-bot vendors can detect Chromium easily and because Firefox has more established fingerprint-resistance research behind it. The project is open source and documented with a stealth overview, build guide and FAQ.