youTubeify 作者： youTubeify

Please use the google chrome version of this extension which you can get at https://chrome.google.com/webstore/detail/youtubeify/idhemoiimcnabhgacjhbchejeeeejdog?hl=en-US

Technical: Firefox does not support the Google Firebase database which is essential for the latest version of youTubeify and so we suggest the chrome version as above