Esoteric topic - installing java's old libnpjp2.so to ff-esr 52.8 on centos7 VM to access old java stuff

[mread (Morgan Read)]

selinux was restricing access, but in anycase, libnpjp2.so needs to go here ~/.mozilla/plugins/libnpjp2.so and not here /usr/lib/mozilla/plugins/libnpjp2.so