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🔥📺 Amazon Fire TV sign-in (Jellyfin)

Use Moonfin as the recommended Jellyfin app on compatible Fire OS devices. Check your device’s operating system first: newer Vega OS models need a different app build.

Before you start

  • Be an active member of the Discord and have the Jellyfin username and password supplied by Cruv. Ask Cruv for a Jellyfin account if you do not have one.
  • Use your supplied username, not your email. An Emby account is not automatically your Jellyfin account.

Check your device

Find the model and software information under Settings → My Fire TV → About (some TVs use Device & Software). The current Moonfin Android-based client supports Fire OS 6 or later. A Fire TV name alone does not tell you which operating system it runs.

Install Moonfin on Fire OS

Search your TV’s Amazon Appstore for Moonfin and choose Get or Download. The publisher links this Amazon listing. Availability can vary by device and region. Moonfin is free; no app unlock or subscription is required.

Connect and sign in

  1. Open Moonfin. Choose Add Server if the server-entry screen is not already open.
  2. In Server Address, enter https://jellyfin.blackbeardsvault.com and choose Connect. Use the complete HTTPS URL; Moonfin detects the server type automatically.
  3. If Who’s watching? appears, choose your existing profile. If yours is missing, choose Add User to enter your username.
  4. Choose Password if Moonfin opens Quick Connect automatically. Enter your supplied Jellyfin Username if requested and your Password, then choose Sign In. Emby Connect is not the login for this server.
  5. Complete the appearance wizard or choose Skip setup to keep the defaults. Open a movie or episode and test picture, audio, and subtitles.

Expected result: your available Jellyfin libraries and watch progress appear. Moonfin is a free independent client; ordinary streaming does not require the Moonbase server plugin. Extra integrations and settings sync depend on what Cruv enables on the server.

If Quick Connect is offered, you can authorize the displayed code from an already signed-in browser instead of typing a password. Follow the Quick Connect instructions.

Fire OS alternative: official Jellyfin

If Moonfin is unavailable or has a playback problem, install the official Jellyfin app from the Amazon Appstore on a compatible Fire OS device. Add the same complete HTTPS URL and use your Jellyfin account, or Quick Connect when offered.

Fire TV with Vega OS

Moonfin has a separate Vega OS Smart-TV build. First check your device’s Amazon Appstore for a compatible Moonfin listing. The project’s installation wiki and release notes disagree about whether the Vega store rollout is complete, so store availability is not guaranteed.

If it is missing, follow the current Moonfin Vega installation instructions for that exact model, or send Cruv your model/OS for help choosing another streaming device. Vega sideloading uses its own .vpkg package and developer workflow; an Android .apk is not compatible. The official Jellyfin Android TV app is not a Vega fallback.

If the Vega build installs, connect it to https://jellyfin.blackbeardsvault.com and use your Jellyfin account; its screens can differ from the Fire OS steps above.

Troubleshooting

  • Cannot connect: check the complete https://jellyfin.blackbeardsvault.com address, including https://. Do not add 8096, 8920, or Emby’s Port 0. Try signing in through the same address in a browser.
  • Sign-in rejected: remove accidental spaces and use your supplied Jellyfin username. If browser sign-in also fails, stop repeated attempts and ask Cruv.
  • Browsing works but playback fails: update the app, leave quality on Auto where offered, and try another title. Test the audio and subtitles too. Format, HDR, and surround-sound support depend on your device and app; a supported platform does not guarantee every file will direct-play.
  • Need another client: use the platform alternative or the browser guide while reporting the problem.

Contact @Captain Cruv on Discord. Include your device model, operating system, app name/version, title, exact error, and when it happened. Never post your password.

References

Publisher-linked Amazon app · Fire OS requirements · Moonfin sign-in · Vega installation · Vega release notes · Jellyfin TV platform update

Technical guidance reviewed 17 October 2026. Store builds, compatibility, and interface labels can differ; check your device’s listing before installing.