Improve YouTube! for Chrome, Firefox, Edge, and Opera adds many useful extras to augment your YouTube experience.

It is designed to make YouTube tidier and more powerful over the default offering. Improve YouTube! allows you to change the YouTube player size, adds themes, auto HD Colors, playback speed control, and more. One nice feature is being able to turn off ads with the ability to whitelist your favorite channel subscriptions - like for MajorGeeks...

Improve YouTube! includes over 42 useful unique features, all designed to improve your watching experience greatly. Each setting category has easy-to-use toggle switches allowing for easy configuration.

Improve YouTube! Features:

● Video Quality
● Auto-Fullscreen
● Fixed Volume or disallow Loudness Normalization
● Fixed Playback Speed
● "Repeat" button for Player
● "Screenshot" button for Player
● "Popup Player" button for Player or PIP Picture in picture player
● "Rotate Video" button for Player
● Forced H.264 Video Codec (speed up)
● Video Autoplay Off
● Ads only on Subscribed Channels
● Disallow ads inside player
● Disable 60fps
● Disable Subtitles
● Up Next Autoplay Off
● Mini Player

Player Appearance:

● Player Size
● Forced Theater Mode
● Player Color (timeline/progress bar)
● Transparent Background
● Header style * Monochrome YouTube Logo
● Hide Cards, Endscreen, Annotations
● Video Page Appearance
● Hide Related Videos, Details, Views, Likes or change their styles
● Show video age
● Show channel video count
● Change style of "Description", "Comments", "Footer", "Livechat", "Playlist" and "Related videos"
● Picture-in-Picture
●Video Quality

A full listing of features can be found at the author's site.

Similar:
● MajorGeeks YouTube Channel
● How to Delete Your YouTube Watch and Search History
● How to Fix No Sound With YouTube