What address? I occasionally encounter pages using other ports, and I am able to view them. The only hitch is that I have Little Snitch asking permission for Firefox to use that port (and I like it that way).

I volunteer at the Georgia Aquarium and it's the volunteer website where we go sign up to volunteer, I've been using it for 3 years without a problem. What's a little snitch? I just want to view the website and now Firefox is preventing me form doing so. Is there a setting I should change?

See:

• http://www.mozilla.org/projects/netlib/PortBanning.html
• http://kb.mozillazine.org/network.security.ports.banned.override

There are no trusted sites. Just because you trust the people who run the site (the Aquarium), don't mean the site itself hasn't been hijacked by bad guys. Have a talk to the site administrator before you start unblocking ports.

By the way, are you talking about the sign-up page, hosted by www.volgistics.com? If the Aquarium has recently hosted their volunteer site on an outside service, that may be why the behaviour has changed after three years.

[By "Little snitch", Finitarry means a warning pop-up by Firefox. "Are you sure Y/N".]

Little Snitch is a Mac OS outbound firewall application. It pops up warnings about situations for which it has no existing rules.