Top features:

• Play your videos in a pop-out window
• Turn off 60fps
• Navigate through videos frame by frame without having to pause
• Allow ads only in videos from your subscribed channels
• Blacklist entire channels from your suggestions and search results
• Make the player fill the entire browser with the Fullbrowser mode feature
• Player always visible where you want while reading the comments
• Play your most recent subscriptions in a playlist
• Reverse any playlist
• Control any playlist autoplay
• Take video screenshots and save them
• View and save the video thumbnail like old times
• Bring back the total number of videos uploaded by the creator
• Use the relative video post time to know quickly how old the video is
• and many more!

Check the full list of features here: https://github.com/ParticleCore/Particle/wiki/Features

Visit the release tracker for the changelogs: https://github.com/ParticleCore/Particle/releases

Current support is only being offered for Firefox and Chrome browsers: https://github.com/ParticleCore/Particle/wiki

Due to time and framework limitations I am unable to accept any more feature requests.