点击浏览器不能启动，在终端输入：
chromium -browser %U
错误如下：
[0807/144244.712736:FATAL:nss_util.cc(627)] NSS_VersionCheck("3.26") failed. NSS >= 3.26 is required
Please upgrade to the latest NSS, and if you still get this error,
contact your distribution maintainer.
NSS (Network Security Services )
解决方案：
sudo apt install --reinstall libnss3