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Top 3 Chrome Extensions (Downloaders) to Download YouTube to MP3
GitHub - girisagar46/youtube-to-mp3: A chrome extension to download MP3 of the current video.
MP3 Converter
Top 5 Extensions for Chrome to Download YouTube to MP3
How to Download YouTube videos as mp3 with Addoncrop
MP3 Downloader
Free YouTube to mp3 converter with ID3 tags | Addoncrop