4. Browser Extension for Extracting Audio
Apps aren’t the only way to rip audio from YouTube on Mac. You can also use browser extensions, such as FVD Video Downloader for Google Chrome. This extension allows users to download audio and video websites from almost every website around. This includes Facebook, Veoh, Vimeo, Metacafe, Dailymotion, and Blip.
One major problem with the plugin is that it is unable to download video or audio from YouTube due to the restrictions of the Google Store. As Google own YouTube, they forbid apps and extensions on Chrome that allow YouTube downloading. If you are looking to extract audio from a video that is hosted exclusively on YouTube, then you need to use an app to rip audio from YouTube on Mac.