Stream Recorder插件，是一款非常适合用于录制直播的屏幕录制工具，录制完成后，还可以直接将视频以mp4的格式下载保存到本地，十分方便。The most popular downloader for Http Live Streaming(HLS)

从浏览器录制音频

Chrome 最强大的屏幕录像机。 捕获，注释，编辑等。

This extension provides you with a free, fast, and straightforward way to record your screen.

Scrcast screen recorder - screencasting and screen recording tool. Completely free!