Supports up to 4K Ultra HD, including 144p to 4K resolution options.
Only install extensions directly from the official addons.mozilla.org (AMO) store. Third-party sites often host modified files bundled with malware.
: Widely considered a "Swiss Army knife" for media. While it excels at detecting individual HLS/DASH streams, it often requires a Companion App
Avoid extensions that request unnecessary permissions, such as reading your data on unrelated banking or social media websites. Legal and Terms of Service Compliance youtube playlist downloader firefox plugin
Remember to always respect content creators' rights, use downloaded content only for personal offline access, and consider supporting the creators who make the content you love.
Approximately are in the playlists you want to download? Share public link
Widely maintained and updated frequently to handle new web structures, updated as recently as January 2026. Supports up to 4K Ultra HD, including 144p
Follow the prompt inside the extension to safely download the companion app for Windows, Mac, or Linux.
: Start with Simple Video Downloader . It's feature-rich, actively maintained, and the one-time setup is worth the effort for reliable long-term use.
# Using pip (Python's package manager) pip install yt-dlp : Widely considered a "Swiss Army knife" for media
: A feature-rich "Swiss Army Knife" for power users. Often installed via a script manager like Tampermonkey
: Most top plugins include a one-click "YouTube to MP3" feature, often supporting high-quality bitrates like 256kbps or 320kbps . Advanced & Utility Features
The extension must be able to recognize a playlist URL and automatically extract every individual video link within that list. Manual copying and pasting defeat the purpose of a batch downloader. Video and Audio Formatting