Is this the error you have received?

67.192.123.199:443 uses an invalid security certificate.

The certificate is not trusted because it is self signed.
The certificate is only valid for <a id="cert_domain_link" title="localhost.localdomain">localhost.localdomain</a>

(Error code: sec_error_untrusted_issuer)

If so, I have no solution at this time. I have placed a call to our hosting service with this error.

I do not believe it is Firefox related. However, you might go into the cert section of FF and delete any cert referencing 4x4wire.

John Stewart
Editor - 4x4Wire.com
Editor - 4x4Voice
Editor - MUIRNet-News
President - BlueRibbon Coalition