SaveFrom - YouTube to MP3 Converter 作者： SaveFrom Helper

Our Add-On will add a new icon on your toolbar (see screenshot). When you are visiting a YouTube video URL (youtube.com/watch?v=videoId) you can use our Add-On by clicking on the icon. A small popup will open and show you the possible formats. Once you choose a format, a new tab will open with our website mp3-convert.org. The conversion will start directly. As soon the conversion is finished you will be able to download the converted YouTube video by clicking on the download button.