Firefox has implemented a more secure method when encompassing unsigned SSL certificates. This may be a pain at first glance, however adding more steps in order to bypass invalid SSL certificates surely is a good thing.
The message you may receive is:
This Connection is Untrusted You have asked Firefox to connect securely to srv-qs-revm.lands.nsw, but we can't confirm that your connection is secure. Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified. What Should I Do? If you usually connect to this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue. srv-qs-revm.lands.nsw uses an invalid security certificate. The certificate is not trusted because the issuer certificate is not trusted. (Error code: sec_error_untrusted_issuer)
To resolve this issue, in the Tools menu select select Options
Select the Advanced tab then the Certificates tab and click on the View Certificates button:
Select the Servers tab and click the Add Exception button:
Finally, enter in the URL and click the Get Certificate button, followed by Confirm Security Exception button. Then OK out and refresh the page.