Requires a separate "CoApp" (Companion App) installation on your PC to merge high-quality video and audio files. YouTube Downloader (UDL Helper) Best For: High-frame-rate (60fps) and 4K/8K downloads.
Higher resolutions (4K/8K) often require a "Pro" version. Video DownloadHelper Best For: Power users and multi-site support. plugins firefox download youtube
Specifically optimized for YouTube and Instagram; supports audio-only extraction in MP3 and M4A. Requires a separate "CoApp" (Companion App) installation on
Detects almost any video stream on the web, including HLS and DASH. plugins firefox download youtube
If you want a quick, "one-click" experience, these are the current top-rated options: Best For: Simple 1080p downloads and MP3 extraction.