Download Latest Version firefox-150.0.1-stealth-linux-x86_64.tar.gz (118.4 MB)
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Name Modified Size InfoDownloads / Week
Parent folder
checksums.txt 2026-05-20 215 Bytes
0
firefox-150.0.1-stealth-linux-x86_64.tar.gz 2026-05-20 110.7 MB
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firefox-150.0.1-stealth-win-x86_64.zip 2026-05-20 129.8 MB
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invisible-firefox (150.0.1) rev 4 source code.tar.gz 2026-05-20 9.1 MB
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invisible-firefox (150.0.1) rev 4 source code.zip 2026-05-20 9.1 MB
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README.md 2026-05-20 1.9 kB
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Totals: 6 Items   258.7 MB 0

Updated 2026-05-20: Linux tarball repackaged to fix #14 (dangling symlinks pointing to maintainer build paths). New SHA256 70c4ea1ecca96df21dc0f73ec70845e093ea5fefce0f40b43e730411e1210651. Windows zip unchanged. If you fetched before this notice, re-run python -m invisible_playwright fetch --force (or wipe ~/.cache/invisible_playwright/firefox-4/).

A stealth-patched Firefox 150.0.1 built from feder-cr/invisible-firefox, branch stealth/150.

Patches spoof the fingerprinting layers that anti-bot systems read — Navigator, Canvas, WebGL, Fonts, Audio, WebRTC, Timezone, DevTools detection — at the C++ source level. The spoofed values come back through the normal Gecko paths; no JavaScript shims.

Use with the invisible_playwright wrapper.

Downloads

  • Windows: firefox-150.0.1-stealth-win-x86_64.zip (124 MB)
  • Linux: firefox-150.0.1-stealth-linux-x86_64.tar.gz (113 MB)
  • SHA-256 sums: checksums.txt

What changed since rev 3

  • Fix #13: Page.uncaughtError now includes the location: {url, lineNumber, columnNumber} field that newer Playwright clients read strictly. Without it, any page that throws an uncaught JS error (e.g. bunny.net) crashed the client with TypeError: Cannot read properties of undefined (reading 'url'). The fix matches upstream Playwright Juggler (microsoft/playwright@c8604ec, 2026-05-07 roll).

JS-only change — xul.dll and firefox.exe are byte-identical to rev 3; only the Juggler JS files in chrome/juggler/ are updated.

Source

feder-cr/invisible-firefox at 1ba55d93051f.

Source: README.md, updated 2026-05-20