PosterFox for Linux

Every published version, newest first. Each file is served by its sha256: the bytes behind a link can never change.

159.0.1-r21
2026-11-11 02:40 UTC · built from c8b3313
## What's new in revision 21

- **Signing in through Cloudflare works again** ("I can't login claude.ai with PosterFox, I get the Cloudflare captchas over and over"). Every tab still gets its own browser identity, so the anti-fingerprinting protection stays, but the identities now make sense: only Firefox, on Windows, macOS or Linux, at this release, the one before or the current ESR (nine in all), and each one is spelled the way that Firefox really spells it everywhere a page can look (the User-Agent header, `navigator.userAgent`, `oscpu`, `platform`, `appVersion`; no Chrome-only fields). A Chrome-shaped identity on Firefox's engine was what kept Cloudflare's check looping. Measured on this release: claude.ai's sign-in reached the "check your email" step in every run, with no challenge shown.
- **Lightning on the toolbar**, like the PosterChan desktop's taskbar: a neon strike across the tabs and toolbar when you open a tab or a page finishes loading. It never runs on a timer (an idle browser draws nothing), and not with reduced motion or on a battery under 20 %. Settings -> General -> Appearance turns it off.
- Tab Containers add-on 1.7.0.

PosterFox 159.0.1 (revision 21) for any x86-64 Linux: unpack and run `posterfox/posterfox`.

Firefox built from Mozilla's source with telemetry compiled out, no Mozilla account, uBlock Origin (every EasyList on), Privacy Badger and PosterChan Passwords, every tab its own container, tabs that sleep after two minutes, and a window in PosterChan's own cyberpunk look. PosterChanOS installs PosterFox through its own package manager; this tarball is for everywhere else.

PosterFox is not affiliated with or endorsed by Mozilla. Firefox is a trademark of the Mozilla Foundation.
159.0.1-r20
2026-11-07 06:35 UTC · built from f2ce1e9
PosterFox 159.0.1 (revision 20) for any x86-64 Linux: unpack and run `posterfox/posterfox`.

Firefox built from Mozilla's source with telemetry compiled out, no Mozilla account, uBlock Origin (every EasyList on), Privacy Badger and PosterChan Passwords, every tab its own container, tabs that sleep after two minutes, and the PosterChan Cyberpunk theme. PosterChanOS installs PosterFox through its own package manager; this tarball is for everywhere else.

PosterFox is not affiliated with or endorsed by Mozilla. Firefox is a trademark of the Mozilla Foundation.
159.0.1-r19
2026-11-05 00:30 UTC · built from 90127b3
PosterFox 159.0.1 (revision 19) for any x86-64 Linux: unpack and run `posterfox/posterfox`.

Firefox built from Mozilla's source with telemetry compiled out, no Mozilla account, uBlock Origin (every EasyList on), Privacy Badger and PosterChan Passwords, every tab its own container, tabs that sleep after two minutes, and the PosterChan Cyberpunk theme. PosterChanOS installs PosterFox through its own package manager; this tarball is for everywhere else.

PosterFox is not affiliated with or endorsed by Mozilla. Firefox is a trademark of the Mozilla Foundation.
159.0-r18
2026-11-04 05:29 UTC · built from 78bbf86
PosterFox 159.0 (revision 18) for any x86-64 Linux: unpack and run `posterfox/posterfox`.

Firefox built from Mozilla's source with telemetry compiled out, no Mozilla account, uBlock Origin (every EasyList on), Privacy Badger and PosterChan Passwords, every tab its own container, tabs that sleep after two minutes, and the PosterChan Cyberpunk theme. PosterChanOS installs PosterFox through its own package manager; this tarball is for everywhere else.

PosterFox is not affiliated with or endorsed by Mozilla. Firefox is a trademark of the Mozilla Foundation.