Disabling annoying stuff in YouTube means removing all that stuff which appears while watching a video on YouTube. YouTube Options is a powerful Google Chrome extension which charges up your YouTube with cool new options and features. It includes advertisements, annotations, change resolution, display size etc.
It also provides you advanced play back options like easy volume control, fast forward, changing video size simply scrolling mouse wheel, optional Flash pre-buffering, disable DASH, looping/replay, video audio volume, SSL, keyboard controls etc. It supports HTML5, “Feather” beta, and also embedded YouTube interface and there are many other options and features, you can learn about them under the details section.