invisible_playwright/CONTRIBUTING.md
feder-cr 7f7a791564 docs: rename feder-cr/firefox-stealth refs to feder-cr/invisible-firefox
The companion C++ patches repo at feder-cr/firefox-stealth was deleted
2026-05-19 and the source-of-truth fork was renamed from feder-cr/firefox
to feder-cr/invisible-firefox.  The branch stealth/150 on the renamed
fork is now the single source of truth for all C++ patches.

GitHub's auto-redirect is in effect for the old URLs but is not a
forever guarantee, so update all references now.

Updated:
  README.md         × 2 hyperlinks  (intro paragraph + license section)
  CONTRIBUTING.md   × 3 references  (quick links, scope, bug reports)
  SECURITY.md       × 1 reference   (out-of-scope vulnerabilities)
2026-05-19 15:41:44 -07:00

3.1 KiB

Contributing to invisible_playwright

Thanks for your interest in improving this project. Contributions are welcome via issues and pull requests.

Scope

This repository ships the Python wrapper (invisible_playwright) around a pre-built patched Firefox. In scope:

  • The InvisiblePlaywright sync/async API and launcher
  • The fingerprint sampler (_fpforge)
  • Binary download/caching, CLI, proxy plumbing
  • Tests, docs, examples, packaging

Out of scope (belongs in invisible-firefox):

  • Changes to the Firefox C++ source
  • New preferences exposed by the patched binary
  • Canvas / WebGL / WebRTC / font spoofing logic

Development setup

git clone https://github.com/feder-cr/invisible_playwright.git
cd invisible_playwright
python -m venv .venv
source .venv/bin/activate  # Windows: .venv\Scripts\activate
pip install -e ".[dev]"
python -m invisible_playwright fetch   # download the patched Firefox binary

Requires Python 3.11+ and one of: Windows x86_64, Linux x86_64.

Running tests

pytest                # unit + integration (default — fast)
pytest -m e2e         # end-to-end, requires the patched binary
pytest -m slow        # wheel-build regression tests

Markers are defined in pyproject.toml. The default run excludes slow and e2e.

Pull requests

  1. Fork and create a topic branch (fix/..., feat/..., docs/...).
  2. Keep PRs focused — one logical change per PR.
  3. Add or update tests for any behavior change.
  4. Make sure the default pytest run is green.
  5. Follow Conventional Commits for commit messages (e.g. fix(launcher): handle missing profile dir).
  6. Update README.md or docs/ when changing user-visible behavior.
  7. Open the PR against main, fill in the PR template, and link any related issue.

CI must be green before merge.

Reporting bugs

Before opening, please:

  • Search existing issues — the bug may already be tracked.
  • Reproduce on the latest release if possible.
  • Confirm the issue is in the Python wrapper, not the patched Firefox itself. If a fingerprint is leaking or a detector flags the browser, open the issue at feder-cr/invisible-firefox instead.

Include:

  • OS and version, Python version, invisible_playwright version (invisible_playwright version)
  • A minimal reproduction
  • Expected vs actual behavior
  • Relevant logs / stack traces

License

By contributing, you agree that your contributions will be licensed under the MIT License (see LICENSE).