UnTube od bcattaneo

Tired of YouTube ads? What about suggestions and the fact you're unable to watch just one video? Then this add-on might be for you.

This add-on hides ads (always) and video suggestions (optional, you can toggle them back).

Functionality
Modifies the YouTube page doing the following:

1. Hides every single ad right when they appear, including the (in)famous "Skip in..." one (if you find any new ad, please let me know)
2. "Blurs" all video suggestions (toggleable)
3. Hides suggestions at the end of the video (toggleable)
4. Blocks redirection to next suggested videos (toggleable)

How it's done
For a technical explanation, check this add-on's website or the "Technical Details" section.