You can also try these related scripts:

• HTML5 Video Playing Tools - 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 #####; Live broadcasts: Twitch, Douyu.com, YY.com, Huya.com. Custom sites can be added
• novel-downloader - An scalable universal novel downloader.
• Bilibili Video Downloader 📥 - Download Bilibili videos with one click, clean and easy-to-use interface