it's good and for the pub i use malwarebytes,decentraleyes,adGuard adblocker and privacy badger ,it's cool,but don't use this add-on by Ugafan ,name: Loader.to all-in-1 helper / youtube downloader par Ugafan,they never work very well,use this one,name: Savefrom YouTube Downloader par Ugafan,it's very good ,and sometime i copy the url from chrome,or from duck duck go search engine,and never connect to youtube by google and block that shit:
phortaub.com

www.googletagmanager.com by malwarebytes add-on;,and if the add-on from firefox it's too slow,copy and paste url by chrome, !!! enjoy !!!