Um diese Add-ons zu verwenden, müssen Sie Firefox herunterladen.
добавляет темную тему в электронный дневник рисо // by @cookiexzero
Extension for making notes linked to YouTube video timestamps / Extensão para anotações vinculadas a timestamps
An elegant extension that adapts webpage aesthetics to match your mood and enhance readability.
简单的离线工具，用于为图片增加基于CSS的滤镜效果。并支持保存图片至本地。
