# hensm/fx_cast

Chromecast Web Sender SDK implementation for Firefox

Repository: https://github.com/hensm/fx_cast
Canonical: https://ross.abutalabs.com/products/fx_cast
Homepage: https://hensm.github.io/fx_cast/
Language: TypeScript
License: MIT
License Family: permissive
Topics: firefox, webextension, chromecast, firefox-addon, google-cast, firefox-extension
Last push: 2026-03-14T18:37:21+00:00

## Health v2 (maintenance only)
Score: 55/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 72, release rhythm 8, longevity 100
- inputs: {"age_days": 3008, "days_push": 172, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2044, forks 75 (observed 2026-08-28T04:06:08.768035+00:00)

## What it is
fx_cast is a Firefox WebExtension that implements the Chromecast (Google Cast) Web Sender API, exposing cast support to web apps and HTML5 media. It requires a companion native bridge application (Windows, macOS, Linux) that handles mDNS discovery and TCP communication with Chromecast receiver devices.

## Use cases
- cast YouTube or Netflix from Firefox to a Chromecast
- enable Chromecast cast buttons on whitelisted websites in Firefox
- cast HTML5 media via a browser context menu
- use Google Cast web sender API in Firefox
- stream web video to a TV receiver device

## When to choose
- you use Firefox and want Chromecast support like Chrome has
- you want to cast web apps or HTML5 media to a Chromecast receiver
- you need a site whitelist to control which sites can cast

## When to avoid
- you need guaranteed stability — v0.x releases are incomplete and may be unstable
- you use Windows 11, where crashes have been reported
- you need to cast DRM-encumbered media without a network-accessible URL
- you use a browser other than Firefox

## Facets
- artifact type: plugin
- maturity: experimental
- function: browser-extension, networking, middleware
- domain: browser-extensions, web-development, media
- platform: browser, windows, cross-platform
- tags: chromecast, google-cast, firefox-addon, webextension, casting, companion-app, typescript, macos, linux

## Member repositories
- hensm/fx_cast (main) score 55

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:08.768035+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:58:03.545133+00:00, confidence not recorded.
  - readme: https://github.com/hensm/fx_cast (fetched 2026-08-28T04:06:08.768035+00:00, sha aad4685b67be)
  - homepage: https://hensm.github.io/fx_cast/ (fetched 2026-08-29T10:38:14.922330+00:00, sha 283d76f4269c)
- Data as of 2026-08-30T08:39:29.467469+00:00.