Simply hides thumbnails on YouTube to have a more peaceful and less distracting browsing experience. Also useful for avoiding spoilers or inappropriate imagery.

Options available:
- Temporarily turn off hiding
- Blur rather than hide thumbnails
- Show thumbnails on hover
- Show thumbnails on search results / playlist / watch pages

This extsion could also be descibed as blocking YouTube thumbnails on videos, disabling YouTube thumbnails on videos, blurring YouTube thumbnails on videos. People have found it useful for:
- Hiding distracting or inappropriate YouTube thumbnails in class when teaching students
- Hiding YouTube thumbnails to reduce distraction and procrastination when studying or working
- Hiding YouTube thumbnails to avoid spoilers in the video