YouTube WATCHED. Classic View
This extension adds a WATCHED mark to the preview of the wholly or partly viewed video, and makes it dimmer. Like in good old days.
Video AdBlock for YouTube™ Extension
Removes all YouTube™ video and text ads. Lightweight and safe, with minimal required permissions. Also works with YouTube™ Music.
Youtube Subtitle Download Helper
This extension allows you to download captions data from Youtube. You can download captions data in multiple file formats.
Hide Labels and End Cards on Youtube
With this extension, you can hide end cards that appear at the end of a youtube video. Labels on the video can also be hidden.