CentOS 7, In firefox -> privacy & security -> certificates -> security devices i am trying to load the pkcs11 modules, but get the error unable to load. I am following the directions at https://piv.idmanagement.gov/engineering/firefox/ I have installed opensc and openssl-pkcs11, which contains /usr/lib64/openssl/engines/pkcs11.so and am using that is the module Has anybody here done that, and can offer advice? Tony Schreiner