Adds keyboard shortcuts for controlling HTML5 media player (audio/video) with OSD support. Seek media to 0%, 5%, 10%, ..., or 95%. Rewind and fast fordward media by 30 seconds, 1 minute, and 5 minutes. Change media speed even beyond YouTube's speed limit. Change audio volume to 20%, 40%, 60%, 80%, or 100%. Change video aspect ratio for TV and letterbox content (for widescreen monitors).
非常感謝
YT我是今天才開始無法自訂快進快退的秒數，沒想到早已解決。
還增加了焦點能保持在播放器的功能，解決了我困擾已久的問題!
Thank you so much
YT! I only started having trouble customizing the fast-forward and rewind times today, I didn't expect it to be solved so soon.
They also added the feature to keep the focus on the player, solving a problem that had been bothering me for a long time!