The anti-detect browser you can fully audit.
A custom anti-detect Firefox browser, built on top of the Camoufox system.
Every fingerprint patch is public. No closed binary. No "trust us."
Download AliasMode · AliasMode app · Releases · Build from source
AliasMode Firefox is the browser engine inside AliasMode, the free, open-source browser profile manager. Each AliasMode profile runs in this engine with its own fingerprint, proxy, and storage.
Most anti-detect browsers ship a closed binary. You cannot check what it spoofs, what it leaks, or what it sends home. AliasMode Firefox is different: the engine, the patches, and the build pipeline are all in this repository under MPL-2.0.
Fingerprint protection happens in Firefox's C++ code, not in a JavaScript layer injected into the page. Pages cannot see it, hook it, or detect a patched API.
| AliasMode Firefox | Typical closed anti-detect browser | |
|---|---|---|
| Engine source | Public (MPL-2.0) | Closed |
| Fingerprint patches | Public, reviewable diffs | Hidden |
| Spoofing layer | C++ inside the engine | Often JavaScript injection |
| Build it yourself | Yes, from this repo | No |
| Profile manager | AliasMode, open source | Usually closed |
- Navigator and screen: user agent, platform, hardware concurrency, touch points, screen and window geometry
- Graphics: WebGL vendor, renderer, parameters, and extensions
- Audio: AudioContext output and sample rate
- Fonts: system font list, CSS system fonts, and font metrics per OS
- Network: WebRTC IP, locale, timezone, and geolocation that match the proxy
- Media: media devices, codecs, and speech voices
- Automation: a hidden Playwright (Juggler) agent, isolated from page scripts, with human-like cursor movement
- Privacy: telemetry and data reporting removed at compile time
See patches/ for every change we make to Firefox.
With AliasMode (recommended). Download AliasMode. It installs the engine, creates fingerprint profiles, and manages proxies for you. Free, no account needed.
Standalone. Download a build from Releases.
The build runs on Linux. Windows and macOS builds are cross-compiled from Linux.
bash scripts/install-deps.sh
make dir
make bootstrap
make build
make runFull cross-platform build and packaging:
python3 multibuild.py --target linux windows macos --arch x86_64 arm64To add or change a patch, run make edits. See CONTRIBUTING.md.
AliasMode Firefox is built on top of Camoufox by daijro and its contributors, the leading open-source stealth Firefox. The pinned upstream release is in settings/aliasmode-provenance.json. We thank the Camoufox team for their work.
MPL-2.0. The AliasMode app is Apache-2.0.