A new version of YouTube Center is available.
The new version can be found at https://github.com/YePpHa/YouTubeCenter/wiki
YouTube Center v2.1.1 Changelog:
+ Added option to change the color of the like/dislike button.
+ Added retro theater background.
+ Added option to load the comment author's country flag by clicking on a button where the country flag will be placed.
+ Added custom buffer to change how much of the video that is allowed to be stored in your memory.
+ Added support for YouTube's new stage modes, which is a YouTube feature where the player size is changed according to your screen size.
+ Added option to change if a playlist should auto-play.
+ [Chrome with DASH playback] Added a player glow feature.
+ Added new player type named 'Aggressive flash', which will aggressively try to prevent the HTML5 player to be chosen.
+ Added ClipConverter.cc to the MP3 services.
+ [Firefox extension] Added support for Seamonkey.
+ Added 5:4 ratio to the player size aspect ratios.
+ Added default option to the auto hide bar feature.
+ Added touch support to some elements in the settings.
+ Enhanced the auto hide detecting for the default option.
+ Enhanced the YouTube Center advertisement filter.
+ Enhanced the loading of the next animation frame to occur before needed.
+ Enhanced the tab communication to reduce CPU usage. Bigger delay might occur.
+ Enhanced YouTube Center's cross platform performance.
+ Updated Libya flag to the correct one.
+ Fixed player size.
+ Fixed static header.
+ Fixed flex width.
+ Fixed the signature decipher for downloading YouTube videos.
+ Fixed no buttons appearing on the new experimental YouTube layout.
+ [Firefox] Fixed YouTube Center not working on FF 32+.
+ Fixed UI issue.
+ Fixed the 'fill' (100% width, 100% height) player size not being correctly set.
+ Fixed issue with the player moving to the left.
+ [Firefox extension] Minimized the memory leak (I recorded about 20-40 MB memoryleak for every tab).
+ Fixed fullscreen top feature not working correctly.
+ Fixed issue with saving YouTube Center settings in a cookie.
+ Fixed issue with grid view.
+ Fixed issue with the YouTube Center buttons not being placed correctly.
+ Fixed issue with the auto hide bar being set to default the player's size would be incorrect.
+ Fixed rare infinite loop issue by forcing the flash player on some videos.
+ Fixed annotations position on the HTML5 player.
+ Fixed an auto play issue.
+ [Safari] Fixed cross origin xmlhttpRequest not working correctly.
+ Fixed the scroll to player button.
+ Fixed auto resolution.
+ [Android] Fixed issue with the colorpicker not working on Android.
Any issue should be reported at https://github.com/YePpHa/YouTubeCenter/issues