ZyXEL Communications ZYWALL USG 20 Manual page 835

Installing a Stand-Alone Certificate File in Opera
Rather than browsing to a ZyXEL Web Configurator and installing a public key
certificate when prompted, you can install a stand-alone certificate file if one has
been issued to you.
Open Opera and click Tools > Preferences.
1
Figure 486 Opera 9: Tools Menu
ZyWALL USG 20/20W User's Guide
Appendix D Importing Certificates
835