ZyXEL Communications NSA-220 Plus User Manual page 344

Appendix D Importing Certificates
Firefox
The following example uses Mozilla Firefox 2 on Windows XP Professional;
however, the screens can also apply to Firefox 2 on all platforms.
If your device's Web Configurator is set to use SSL certification, then the first time
1
you browse to it you are presented with a certification error.
Select Accept this certificate permanently and click OK.
2
Figure 179 Firefox 2: Website Certified by an Unknown Authority
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NSA-220 Plus User's Guide