uBlock Origin by Raymond Hill

 

Wikipedia: https://en.wikipedia.org/wiki/UBlock_Origin 

GitHub: https://github.com/gorhill/uBlock 

Firefox: https://addons.mozilla.org/addon/ublock-origin/ 

Chrome Web Store: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm 

Microsoft Edge: https://microsoftedge.microsoft.com/addons/detail/ublock-origin/odfafepnkmbhccpbejgmiehpchacaeak 

Opera: https://addons.opera.com/extensions/details/ublock/ 

GitHub Safari: https://github.com/el1t/uBlock-Safari#ublock-originfor-safari 

 The best ad blocker, works perfectly with youtube!