Material You Chromium Blue от mashiros-_-waifu

What you see is what you get.
It is a theme in a blue color scheme modeled after the Material You style in Chromium-based Browsers.
This theme also works with other Firefox-based Browsers like LibreWolf, Waterfox, Pale Moon, FireDragon, PlasmaFox, Mercury or Ghostery.

GitHub Repo: https://github.com/mashiroswaifu/firefox-theme-materialyou-chromiumblue