https://blog.wongcw.com/2019/01/31/mozilla%e6%8e%a8%e5%87%ba%e7%a7%bb%e5%8b%95%e7%89%88%e7%80%8f%e8%a6%bd%e5%99%a8%e6%b8%ac%e8%a9%a6%e9%a0%85%e7%9b%aereference-browser/