Magic Actions is easy to use!
Few key features v6.9:
✔ AutoHD feature - start play all YouTube™ videos in Ultra HD
+ HD 4k > HD1440p > HD1080p > HD720p > 480p > 360p > 240p > 144p
✔ Ad Block - blocks annoying video ads
✔ Looper - mark up one or several pieces of video and then play them in an endless loop.
✔ Instant control over volume by scrolling mouse wheel!
+ OSD on-screen display
✔ Cinema Mode - 1-click and the whole page is shaded
+ make you feel as if you were in a movie theater!
+ click again to toggle back to the normal view
+ over 20 predefined color themes
+ your own custom colors
✔ 1-click to take snapshot from playing video and save as PNG, JPEG or WEBP image format! (!HTML5 and Pepper-Flash player only)
✔ Cool Day/Night toggle swicth to browse YouTube in black or white
✔ View and delete your watch history
✔ Ratings preview for related videos
✔ Enlarge avatars and video thumbnails on mouse over
✔ Display user info in comments
+ country flag, uploaded videos count, views, subscribers, description, date joined etc.
✔ Expand videos to full window size
✔ Auto Wide - always play in wide player mode
✔ Stop Autoplay - manage whether or not the initial video will autoplay
+ allow/deny preloading a video
+ play a sound when loading complete
✔ Replay - repeat, replay a video again and again
✔ Auto-hide Player Controls - video controls will automatically hide after a video begins playing
✔ Hide Annotations - Don't show video annotations
✔ Ability to prevent loading comments, hide related videos, guide, etc.
Like&Follow Magic Actions for YouTube™: