What an absolutely fantastic extension. The key things I use this for are to block ads, stop autoplaying the next video and set the default playback speed to 1.5.

Love this addon, can't use YT without it! Would love to see an option to sync audio as on some videos the audio can be out of sync due to uploader error and it really bugs me! Other than that this is a MUST extension if you ever touch youtube.

Absolutely fantastic, I love this add-on! The only thing I'd like more from it is the option to disable scrolling down the page while fullscreen, otherwise this is perfect.

never had any problems with this addon does what it says (would recommend it) also removes ads

Have had zero issues with the tool, very useful, and never fails.