VizoTV on FireStick and Fire TV
FireStick turns any TV into a smart TV, and VizoTV turns it into a live TV hub. The app is free, developed by Nonari Tec (package com.iptv.movies.live.tvplayer.hub), with no activation fee and no account needed, and its remote-first design works perfectly with the Fire TV remote. Pre-loaded free public channels play straight away, and you can add your own M3U playlist or Xtream Codes login for more. The lightweight, buffer-free engine is made for FireStick hardware, including older sticks and Fire TV Cube.
Install in Five Steps
Because VizoTV is sideloaded on FireStick, install it with the Downloader app: get Downloader, allow installs from unknown apps, open the download page, fetch the APK and install. The full walkthrough is on the how to install VizoTV on FireStick page. You can also grab the latest VizoTV APK directly, or see every install route on the VizoTV download page. If streams stutter, the buffering fix guide will help.