Install the app

You need: a Fire TV (or Android TV / Google TV) on Android 9 or newer, and a way to sideload an APK. Fire TV users usually use the Downloader app.

Steps

1. Download the latest APK from the Glass releases page. Sideload it (for Downloader, enter the release URL, then allow “Install unknown apps” for it when asked).
2. Open Glass TV Launcher from your apps.
3. Make it your home screen:
   • Google TV / Android TV: Settings, Home Button, Make Glass TV Launcher the Default.
   • Fire TV: Fire OS has no default-launcher picker. In Glass, open Settings, then Home Button, and turn on Home Button Takeover. If Glass cannot switch the accessibility service on itself, enable “Glass TV Launcher” in the TV’s Accessibility settings.

What to expect on Fire TV

Pressing Home still goes to Amazon’s launcher first, then Glass opens over it about a moment later. That is a limit of Fire OS, not a bug. If the flash bothers you, use Install + one command, which removes the flash.

The service only watches for Amazon’s launcher windows. It does not read your screen or filter keys.

Undo

Turn off Home Button Takeover, then uninstall Glass from Settings, Applications. Nothing else was changed.

See What works without root for the full feature list.