今天在安装Firefox时，出现如下错误
[root@localhost ~]# firefox
XPCOMGlueLoad error for file /usr/lib64/firefox/libxul.so:
/lib64/libnss3.so: version `NSS_3.' not found (required by /usr/lib64/firefox/libxul.so)
Couldn't load XPCOM.
查找资料得知，只需安装nss.x86_64即可
yum install nss.x86_64 -y