When trying to load libaetpkss.so.3 module from /usr/lib to Firefox, I keep getting the answer: "Unable to add the module" (translated from portuguese), on Firefox 60+ on Ubuntu 18.04. I've seen and discussed the issue with fellow Ubuntu users, and no one could find a solution. The procedure worked fine up to UBuntu 17.10. Privacy and Security -> Security devices -> Load -> Name of module file: /usr/lib/libaetpkss.so.3 (translated from Portuguese) Any help would be most appreciated.