Camoufox

Camoufox: what stealth looks like when it’s baked into the browser, not bolted on

Almost every anti-detect browser masks your fingerprint by injecting JavaScript at runtime — and modern detectors have gotten very good at noticing when a property was overwritten after the page loaded. Camoufox sidesteps that entire argument by patching Firefox in its own C++ source, so there’s simply nothing injected to catch. It’s free, it’s open, and it has no interface whatsoever. That last point decides almost everyone.

In one paragraph

Camoufox is a free, open-source Firefox fork built for a single job: programmatic stealth browsing. Because the spoofing lives in the browser’s C++ layer rather than in an injected script, detection tools don’t see the tell-tale traces of runtime tampering. There’s no GUI — you drive it from Python — so it’s a tool for developers and scraping engineers, not for someone clicking through profiles by hand.

Pricing, such as it is

Plan	Price	Profiles	Notes
Open Source	$0	Unlimited (programmatic)	Ships as a Python package with a bundled Firefox build

Confirmed free and open-source as of September 2026 — there are no tiers, seats or per-profile fees to verify.

The masking is the point, and it’s the real deal

Implementing spoofing inside Firefox’s C++ rather than through JavaScript is the whole design, and it’s a good one. Camoufox controls every navigator property, screen and viewport dimension, geolocation, timezone, locale and Intl, and it rotates fingerprints per launch from a distribution drawn from real devices — so you’re not reusing one static identity across a fleet. The one honest caveat is the engine: it’s Firefox-based, and Firefox is a smaller slice of real-world traffic than Chromium, so a Chromium-only target won’t be fooled by a Firefox stack no matter how clean it is.

Built to be driven from code

Automation isn’t a feature here, it’s the entire product. You launch it mainly from Python, and in remote-server mode it exposes a Playwright API so other languages can talk to it too. Pair that with a debloated build that sips roughly 200MB of RAM — against 800MB-plus for a normal Chrome — and you have something that scales into a headless scraping fleet or an AI-agent swarm without melting your server budget. For that use case it’s excellent, which is why it earns a 9 on both automation and value.

What you give up

There is no graphical interface, no profile library, no tagging, no dashboard — profiles are objects you create in code, nothing more. There’s no team layer beyond whatever you build around it, and no hosted cloud or mobile-profile service (though you can obviously run it on your own boxes). Proxies are set per launch in code, and you can align geolocation, timezone and locale to each proxy to keep an identity coherent — powerful, but again, only if you’re comfortable scripting it. For a developer none of this is a problem. For anyone else it’s a wall.

Who should reach for it — and who shouldn’t

Reach for Camoufox if you live in Python and want injection-free stealth for scraping, data harvesting, ad verification, sneaker/retail bots or AI agents that need a light, hard-to-detect browser they can drive from code. On that brief it’s one of the best things here, and it’s free.

Skip it if you want a point-and-click profile manager, run Chromium-only workflows, or don’t write code. There’s no hand-holding and no GUI to fall back on — AdsPower or Multilogin will serve you far better.

Questions people ask

Is Camoufox free? Completely. It’s open source with a bundled Firefox build shipped as a Python package — no paid tier at all.

How do I download Camoufox? Install it as a Python package (it fetches its own patched Firefox build); the project and its docs live at camoufox.com and on GitHub. There’s no installer or app to click through — it’s code from the first step.

Does Camoufox support automation? Yes — automation is its reason to exist. It runs via Python and exposes a Playwright API in remote-server mode.

Is Camoufox good for web scraping? Very. The low RAM footprint plus C++-level spoofing make it a strong fit for scraping and AI-agent workloads, as long as you can script it.

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This review follows our evaluation methodology. Spotted outdated data? Submit a product update.

Reviewed by anonymous — independent anti-detect browser researcher. Affiliate disclosure: some links are partner links; this never affects our scores.