invisible_playwright/CHANGELOG.md
feder-cr 567717dfd7 release: 0.1.4 - firefox-4 binary with Page.uncaughtError fix (#13)
Fixes #13: every page that threw an uncaught JS error (bunny.net is the
reporter's repro) crashed the Playwright client with
"TypeError: Cannot read properties of undefined (reading 'url')".

Root cause: upstream Playwright Juggler added a required `location` field
to the Page.uncaughtError event in their 2026-05-07 patch roll; our fork
was carrying the pre-roll schema in every firefox-N build, and any
Playwright client released after the roll read pageError.location.url
strictly.

Fix is in the patched binary (feder-cr/invisible-firefox@1ba55d93), JS-only
inside chrome/juggler/. xul.dll and firefox.exe are byte-identical to
firefox-3 — only the Juggler protocol files change.

BINARY_VERSION bumped firefox-3 → firefox-4.  Package version 0.1.2 → 0.1.4
(0.1.3 was never published to PyPI; the changelog entry is kept as
historical record of the firefox-3 binary release).
2026-05-20 07:05:23 -07:00

6.8 KiB

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

[0.1.4] - 2026-05-20

Fixed

  • #13: every page that threw an uncaught JS error (e.g. bunny.net) crashed the Playwright client with TypeError: Cannot read properties of undefined (reading 'url'). Root cause: upstream Playwright Juggler added a required location field to the Page.uncaughtError event in the 2026-05-07 roll (microsoft/playwright@c8604ec); our fork was carrying the pre-roll schema in every firefox-N build. Fix matches upstream — Runtime.js builds the errorLocation, PageAgent.js forwards it on both worker and runtime error paths, Protocol.js declares the schema field. Reporter: @dionorgua.

Changed

  • BINARY_VERSION bumped from firefox-3 to firefox-4. JS-only change inside chrome/juggler/; xul.dll and firefox.exe are byte-identical to firefox-3.

[0.1.3] - 2026-05-19

Changed

  • BINARY_VERSION bumped from firefox-2 to firefox-3. The new archives on both Windows and Linux are built from a clean clone of feder-cr/invisible-firefox#stealth/150 — the consolidated source-of-truth fork (renamed from feder-cr/firefox; the companion feder-cr/firefox-stealth patches repo was deleted, all patches now live as commits on top of mozilla-firefox/firefox).
  • The patched Firefox archive now ships the proper C++ implementation of windowUtils.jugglerSendMouseEvent, replacing the JS shim from 0.1.2.

C++ fixes landed in this release

  • C1+C2: setDownloadInterceptor IDL + cpp (re-landed for FF150).
  • C4: 5 nsIDocShell stealth attributes (fileInputInterceptionEnabled, overrideHasFocus, bypassCSPEnabled, forceActiveState, disallowBFCache).
  • C5: LauncherProcessWin.cpp + nsWindowsWMain.cpp juggler-pipe handle inheritance — without this, the Playwright pipe disconnects immediately on launch.
  • C6: juggler-navigation-started-renderer / -browser observer notifications in nsDocShell.cpp and CanonicalBrowsingContext.cpp — without these, Page.ready never fires and ctx.new_page() hangs.
  • C7 (partial): storage stub for nsIDocShell.languageOverride. Workaround InvisiblePlaywright(locale="") recommended until full BC FIELD port lands.

Verified

  • Both archives built from same source: feder-cr/invisible-firefox commit 68906f1f9c55.
  • Windows + Linux smoke suite green: launch, ctx.new_page(), page.mouse.{move,down,up,click,wheel}, navigator.webdriver=false, sannysoft 32/33 PASS.
  • SHA256 published in checksums.txt on the firefox-3 release.

Notes

  • This is the first release with a native Linux build of the patched binary (previous firefox-3 draft mentioned shipping the Linux firefox-2 archive byte-for-byte; that no longer applies — Linux now has the full C++ patch series).

[0.1.2] - 2026-05-18

Changed

  • BINARY_VERSION bumped from firefox-1 to firefox-2. The patched Firefox archive on GitHub Releases now contains the JS fix from 0.1.1 (every page.mouse.* / page.click() / locator.click() / mouse.wheel() failure on the FF150 binary). Users on 0.1.1 must run python -m invisible_playwright clear-cache && python -m invisible_playwright fetch to pick up the new archive.

Verified

  • Archive integrity tests on both platforms: Windows zip extracted + booted via Playwright (mouse.move + click + page.click(selector) all succeed end-to-end), Linux tarball file-level checks (firefox/libxul.so sizes, byte-identity of patched JS files against Windows source). 21/21 assertions pass.
  • SHA256 published in checksums.txt on the firefox-2 release.

0.1.1 - 2026-05-18

Fixed

  • Critical: every page.mouse.*, page.click(selector), locator.click(), page.hover(), mouse.wheel() failed on the patched Firefox 150 binary with win.windowUtils.jugglerSendMouseEvent is not a function. The Juggler JS was porting calls to a Playwright-specific C++ method that was never landed in the FF146→FF150 port; replaced with the Mozilla chrome-scope win.synthesizeMouseEvent helper which is present in FF150. Six call sites patched across juggler/protocol/PageHandler.js and juggler/content/PageAgent.js. Reporter: @trob9#9.
  • _linkedBrowser.scrollRectIntoViewIfNeeded() is now guarded at both call sites in PageHandler.js (dispatchMouseEvent and dispatchWheelEvent) — the method is not present on the shipped FF150 <browser> element, so the unguarded call threw before the mouse event was dispatched.

Added

  • tests/test_mouse.py: 12-case regression suite covering every patched code path (mouse.move/click/dblclick/right-click, modifiers, locator.click/hover, wheel, manual mousedown+up, off-viewport move, humanize intermediate moves, scroll-and-click on offscreen element). Test cases inspired by microsoft/playwright-python/tests/async/test_click.py.
  • Community standards: CODE_OF_CONDUCT.md, CONTRIBUTING.md, SECURITY.md, .github/ISSUE_TEMPLATE/*, .github/PULL_REQUEST_TEMPLATE.md.

Notes

  • The Stealthfox humanize Bezier expansion continues to fire intermediate mousemove events; the swap to synthesizeMouseEvent does not change the human-trajectory behavior (verified by test).
  • The reCAPTCHA v3 score (0.90) and FingerprintPro / CreepJS results documented in the README are unaffected — synthesizeMouseEvent is a legitimate Mozilla helper that does not increase the anti-detect surface.
  • A binary refresh of the patched Firefox archive on GitHub Releases is required for users to receive this fix (the Juggler JS is shipped inside the archive). The BINARY_VERSION will be bumped to firefox-2 in that release.

0.1.0 - 2026-05-13

Added

  • Initial public release.
  • InvisiblePlaywright sync and async context managers — drop-in replacement for playwright.sync_api.Browser / async_api.Browser.
  • StealthFox humanize hook: Bezier-curve mouse trajectories enabled by default.
  • _fpforge Bayesian fingerprint sampler with ~400 fields per session.
  • CLI: invisible-playwright fetch | path | version | clear-cache.
  • Pinnable fingerprint fields via pin={...} (see docs/pinning.md).
  • SOCKS5 / SOCKS4 / HTTP / HTTPS proxy support with auth.
  • Linux x86_64 and Windows x86_64 binary support.