Netscape Security Suite (NSS)

The Netscape Security Suite (NSS) manages certificates and PKCS#11 modules. There is also a GUI application, called nss-gui.

Commands

Especially on CentOS you should start the PC/SC damon (pcscd) on system boot, and not driven by udev (configure for example using Gnome application system-config-services). This ensures Firefox is running properly also without a USB security stick plugged in.