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Introduction
An open source anti-detect browser with robust fingerprint injection. 🦊
The latest releases are highly experimental and may contain breaking changes! Preview releases are available, but are NOT stable or suitable for production use.
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Features
- Invisible to all anti-bot systems 🎭
- Camoufox performs better than most commercial anti-bot browsers.
- Fingerprint injection & rotation (without JS injection!)
- All navigator properties (device, OS, hardware, browser, etc.) ✅
- Screen size, resolution, window, & viewport properties ✅
- Geolocation, timezone, locale, & Intl spoofing ✅
- WebRTC IP spoofing at the protocol level ✅
- Voices, speech playback rate, etc. ✅
- And much, much more!
- Anti Graphical fingerprinting
- WebGL parameters, supported extensions, context attributes, & shader precision formats ✅
- Font spoofing & anti-fingerprinting ✅
- Quality of life features
- Human-like mouse movement 🖱️
- Blocks & circumvents ads 🛡️
- No CSS animations 💨
- Debloated & optimized for memory efficiency ⚡
- PyPi package for updates & auto fingerprint injection 📦
- Stays up to date with the latest Firefox version 🕓
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Design and Implementation
The goal of Camoufox is to provide a robust, undetectable anti-fingerprinting solution that blends in with regular user traffic.
Many modern 'hardened' browsers and extensions often become counterproductive by making users more distinguishable through detectable JavaScript tampering, blocking certain web APIs, and using static device information. This, ironically, makes the user stand out through your unique browser configuration, making you more trackable and in many cases flagged by anti-bot systems for unusual traffic.
Camoufox solves this through fingerprint rotation at a lower level by modifying device information in the C++ implementation instead of injecting JavaScript, which leaves a trail. Built on Firefox and research from the Tor project, Arkenfox, and CreepJS, Camoufox hopes to take a new approach in avoiding tracking methods to provide robust, undetectable anti-fingerprinting.
A design goal of Camoufox is to blend in with real world traffic. It must behave like a normal user and avoid all statistical fingerprinting, meaning there should not be thousands of requests using the same device information on a large scale.
To achieve this, Camoufox uses BrowserForge to rotate device information such as the screen, OS, and hardware to mimic the statistical distribution of device characteristics in real-world traffic. Additionally, Camoufox uses a natural mouse movement algorithm to behave like a normal user.
Finally, Camoufox should avoid all bot detection, of any kind, by any means. It should not inject any JavaScript into the page or manipulate the main world's DOM in any way. All of Juggler's internal Page Agent Javascript is ran in a sandboxed world. This makes it nearly impossible for a page to detect the presence of Playwright.
Camoufox is built on top of Firefox instead of Chromium for these main reasons:
- Chrome is bundled with certain features that Chromium does not have. Anti-bot providers can detect if you are using Chromium rather than Chrome. Since Chrome is closed source, patching Chrome is significantly more difficult.
- CDP is more widely used and known, so it's a more common target for bot detection
- Juggler operates on a lower level than CDP, making it less prone to JS leaks.
- Firefox is more ideal for fingerprint rotation. More research has been made on Firefox for fingerprinting resistance than on Chromium.
Yes. As of v146.0.1-beta.25 (January 2026), all of Camoufox's source is publicly avaliable. While some future patches may be closed source, the open sourced code will always remain buildable.
If you'd like to build Camoufox yourself, see the build guide.