Enable hotkeys for HTML5 playback: video screenshot; enable/disable picture-in-picture; copy cached video; send any video to full screen or browser window size; fast forward, rewind, pause/play, volume, skip to next video, skip to previous or next frame, set playback speed. Video sites supported: YouTube, TED, Youku, QQ.com, bilibili, ixigua, iQiyi, support mainstream video sites in mainland China; Live broadcasts: Twitch, Douyu.com, YY.com, Huya.com. Custom sites can be added
< Feedback on HTML5 Video Playing Tools
解决办法参见：https://greasyfork.org/zh-CN/forum/discussion/38029
bilibili记不住弹幕设置
chrome 64.0 开启后每次刷新页面弹幕设置都会重置