Like the other extensions, when you open a YouTube video a new MP3 button appears. In this case, we must install Foxified first and then install the YouTube MP3 Convertor. However, there are some workarounds, such as sideloading the extension or using a middle-man extension like Foxified, which helps use Firefox extensions in Chrome. Unfortunately, because Chrome and YouTube are owned by Google, it does not officially support extensions to rip audio or video from YouTube. YouTube MP3 Converter – Best Chrome Extension However, the real quality depends on the original video source, which can also be downloaded by apps like TubeOffline. YouTube to MP3 lets you configure the extension and select your preferred MP3 bitrate, from 96kbps to 320kbps. When the conversion is complete, the download will automatically begin and can be found in your default Firefox downloads folder. Depending on the quality settings and length of the video, it can take several minutes, but the end result is a perfect MP3 file. If it doesn’t appear the first time, a quick refresh usually does the trick.Ĭlick the MP3 button to begin the conversion. Once you’ve installed the extension from the official Firefox Add-Ons page, you will see a clear MP3 button on any video you browse on YouTube. Another YouTube audio downloader extension that does exactly what you expect with no bugs is aptly named YouTube to MP3 and is currently the best option for Firefox.