ZyXEL Communications NSA-220 Plus User Manual page 308

Appendix D Importing Certificates
Removing a Certificate in Opera
This section shows you how to remove a public key certificate in Opera 9.
Open Opera and click Tools > Preferences.
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Figure 160 Opera 9: Tools Menu
In Preferences, Advanced > Security > Manage certificates.
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Figure 161 Opera 9: Preferences
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NSA-2401 User's Guide