If you use youtube.com/new (the beta layout), many playlist downloaders will fail. Opt out:
Using Firefox extensions like External Application Launcher to pass the URL to yt-dlp . This moves the heavy lifting from the browser's limited sandbox to a powerful command-line tool that updates almost daily. youtube playlist downloader firefox plugin fix
Use a lightweight Firefox extension that only focuses on grabbing video links. For example, the "YouTube Playlist Link Grabber" is a Manifest V3 extension that extracts video URLs from any YouTube playlist and formats them into a simple list for easy copying. Similarly, the "YouTube Playlist ID Extractor" can pull unique video IDs with one click. If you use youtube
: If it's already on, click the three dots next to the extension, select Remove , and then reinstall it from the Official Firefox Add-on Store . 2. Clear Cookies and Site Data Use a lightweight Firefox extension that only focuses
If your current plugin is permanently broken, these are currently highly rated for Firefox users: youtube features not working(like add to playlist comment)