I am using the NSS certutil to add a certificate to users profiles on OS X (10.8-10) running Firefox ESR 31.4. There is no problem adding the cert to existing users profiles, however I want to add it so that new users who log in will automatically have the cert installed. As I understand it, I should be able to install the cert to a default profile in the application that will then go out to new users when they run FF for the first time, however this has not been the case in my testing. I have been running the cert util, as root, on the directory '/Applications/Firefox.app/Contents/MacOS/browser/defaults/profile'. The command ('/opt/local/bin/nss-certutil -A -i mycert.cer -n "My Cert" -t "C,," -d "/Applications/Firefox.app/Contents/MacOS/defaults/profile"') runs without error and places three files in there: cert8.db, key3.db, secmod.db When i log in as a new user on the system however, they do not have the cert. What am I missing?