Jake WriterandClaude Opus 5
3f0f850bf3
Launcher-side fixes found by comparing camoufox against stock Firefox 152.0.4 on Linux, Windows 11 and macOS hosts: - DNT / GPC: BrowserForge draws doNotTrack "1" on most Firefox samples, but a stock Firefox 152 reports "unspecified" and globalPrivacyControl false; the stock defaults are used unless the caller sets them, and both are applied as prefs so the API, the worker and the DNT / Sec-GPC headers agree (#760). - Timezone and geolocation: the timezone is passed to the browser, and a configured position sets permissions.default.geo so permissions.query agrees with the auto-grant (#769, #773). - hardwareConcurrency: the reported count is the fingerprint's and the browser is pinned to that many cores (cpu_affinity.py, Linux/Windows), so worker timing agrees with it; otherwise the host count snapped into the core counts real machines ship with (never 2, Firefox's resistFingerprinting value). - Fonts: the OS base is always present in full, OS-version variants are drawn all-or-nothing, co-shipped groups stay together, Cascadia is never claimed off Windows, a native macOS/Windows identity claims only the real OS base, and gfx.font_rendering.fallback.async is off on Linux so per-character fallback does not depend on cmap-load timing. - Speech voices: a per-OS installed-voice model (voice-manifests.json) with the voiceURI formats each backend really produces (voice-uris.json); no default voice where stock has none. - WebGL: extensions a release Firefox never exposes are filtered, but OVR_multiview2 stays for Windows D3D11 renderers, which expose it. - Media devices: a seeded draw of common per-OS devices with OS-style labels. - Windows scrollbars follow the drawn Windows version (overlay on 11). - Glyph-advance perturbation (fonts:spacing_seed) defaults to off: it moved every measureText width off the value the same font gives on a real machine. - Launcher prefs are also exported as CAMOU_PREFS_1..N so camoufox.cfg applies them at startup, and the browser UI locale follows the spoofed locale. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Camoufox Python Interface
Lightweight wrapper around the Playwright API to help launch Camoufox.
Note
All the the latest documentation is avaliable here.
What is this?
This Python library wraps around Playwright's API to help automatically generate & inject unique device characteristics (OS, CPU info, navigator, fonts, headers, screen dimensions, viewport size, WebGL, addons, etc.) into Camoufox.
It uses BrowserForge under the hood to generate fingerprints that mimic the statistical distribution of device characteristics in real-world traffic.
In addition, it will also calculate your target geolocation, timezone, and locale to avoid proxy protection (see demo).
Installation
First, install the camoufox package:
pip install -U camoufox[geoip]
The geoip parameter is optional, but heavily recommended if you are using proxies. It will download an extra dataset to determine the user's longitude, latitude, timezone, country, & locale.
Next, download the Camoufox browser:
Windows
camoufox fetch
MacOS & Linux
python3 -m camoufox fetch
To uninstall, run camoufox remove.
Installing multiple Camoufox versions & from other repos
UI Manager
Manage installed browsers, active version, IP geolocation databases, and package info. Basically a Qt front end for the Python CLI tool.
More updates on it will be coming soon.
To use the gui, install Camoufox with the [gui] extra:
pip install 'camoufox[gui]'
To launch:
camoufox gui
CLI Mananger
Demonstration
https://github.com/user-attachments/assets/992b1830-6b21-4024-9165-728854df1473
See help message
$ python -m camoufox --help
Usage: python -m camoufox [OPTIONS] COMMAND [ARGS]...
╭─ Options ─────────────────────────────────────────────────────────────────────────────╮
│ --help Show this message and exit. │
╰───────────────────────────────────────────────────────────────────────────────────────╯
╭─ Commands ────────────────────────────────────────────────────────────────────────────╮
│ active Print the current active version │
│ fetch Install the active version, or a specific version │
│ gui Launch the Camoufox Manager GUI (requires PySide6) │
│ list List Camoufox versions │
│ path Print the install directory path │
│ remove Remove downloaded data. By default, this removes everything. │
│ Pass --select to pick a browser version to remove. │
│ server Launch a Playwright server │
│ set Set the active Camoufox version to use & fetch. │
│ By default, this opens an interactive selector for versions and settings. │
│ You can also pass a specifier to activate directly: │
│ Pin version: │
│ camoufox set official/stable/134.0.2-beta.20 │
│ Automatically find latest in a channel source: │
│ camoufox set official/stable │
│ sync Sync available versions from remote repositories │
│ test Open the Playwright inspector │
│ version Display version, package, browser, and storage info │
╰───────────────────────────────────────────────────────────────────────────────────────╯
sync
Pull a list of release assets from GitHub.
> camoufox sync
Syncing repositories...
Official... 24 versions
CoryKing... 2 versions
Synced 26 versions from 2 repos.
set
Choose a version channel or pin a specific version. Can also be called with a specifier to activate directly.
Interactive selector:
> camoufox set
You can also pass a specifier to pin a specific version or choose a channel to follow directly. This will pull the latest stable version from the official repo on camoufox fetch.
> camoufox set official/stable # Default setting
Follow latest prerelease version from the official repo, if applicable:
> camoufox set official/prerelease
Pin a specific version:
> camoufox set official/stable/134.0.2-beta.20
active
Prints the current active version string:
> camoufox active # Default channel is active
official/stable
> camoufox set coryking/stable/142.0.1-fork.26
Pinned: coryking/stable/142.0.1-fork.26
Run 'camoufox fetch' to install.
> camoufox active # A specific version is pinned
coryking/stable/142.0.1-fork.26 (not installed)
fetch
Install the latest version from the active channel. By default, this is official/stable. This will also automatically sync repository assets.
> camoufox fetch # Install the latest in the channel
To download the latest from a different channel, or pin a version:
> camoufox set coryking/stable
> camoufox fetch # Will download the latest release from CoryKing's repo for now on
Or pass in the identifier to download directly without activating it:
> camoufox fetch official/stable/135.0-beta.25 # Install a specific version
list
List installed or all available Camoufox versions as a tree.
> camoufox list # show installed versions
> camoufox list all # show all available versions from synced repos
> camoufox list --path # show full install paths
remove
By default, removes the entire camoufox data directory.
> camoufox remove
> camoufox remove -y # skip confirmation prompt
Remove a specific version:
> camoufox remove official/stable/134.0.2-beta.20
Interactively select a version to remove:
> camoufox remove --select
version
Display the Python package version, active browser version, channel, and update status.
> camoufox version
Python Packages
Camoufox v0.5.0
Browserforge v1.2.4
Apify Fingerprints v0.10.0
Playwright v1.57.1.dev0+g732639b35.d20251217
Browser
Active official/stable/135.0.1-beta.24
Current browser v135.0.1-beta.24
Installed Yes
Latest in official/stable? Yes
Last Sync 2026-03-07 00:23
GeoIP
Database MaxMind GeoLite2
Updated 2026-03-07 00:24
Storage
Install path /home/name/.cache/camoufox
Browser(s) directory size 1.2 GB
GeoIP database size 40.7 MB
Config file /home/name/.cache/camoufox/config.json
Repo cache /home/name/.cache/camoufox/repo_cache.json
path
Print the install directory path.
> camoufox path
/home/name/.cache/camoufox
test
Open Camoufox with the Playwright inspector for debugging.
> camoufox test
> camoufox test https://example.com
server
Launch a remote Playwright server.
> camoufox server
Usage
All of the latest stable documentation is avaliable at camoufox.com/python.