firefox 打开问题,删除cert8.db
https://support.mozilla.com/zh-CN/kb/%E4%B8%8D%E8%83%BD%E5%88%9D%E5%A7%8B%E5%8C%96FireFox%E6%B5%8F%E8%A7%88%E5%99%A8%E7%9A%84%E5%AE%89%E5%85%A8%E7%BB%84%E4%BB%B6
https://support.mozilla.com/zh-CN/kb/%E4%B8%8D%E8%83%BD%E5%88%9D%E5%A7%8B%E5%8C%96FireFox%E6%B5%8F%E8%A7%88%E5%99%A8%E7%9A%84%E5%AE%89%E5%85%A8%E7%BB%84%E4%BB%B6