Нафига доступ к данным всех web-сайтов?

Стала работать с ошибками: включается на страницe Yandex, когда в запросе есть видео с Youtube, окрашивает низ страницы в тёмный цвет.

work's perfectly. for the ones who say "lags" go into the settings of the add-on.

FINALLY!...an addon that works excellent in Ubuntu.
I was using Enhancer for YouTube, I made the bug report but no answer, so...if there's no interest from the developer, I uninstall the addon and give 1 star.
But this one works excellent!
Update: 1 star less, it has a bug, I have to reload/refresh YouTube for the theme to be applied.
I'm a Ubuntu 18.10 user.

Awesome addon! Thank you so muchhhhh

Many useful dark themes. I love it!