Ubiquity Certificate Problem with Network Authentication

Our college network requires a web-based authentication and when I start Firefox (before logging on) I get a security certificate error. I have to use IE to log into the network before starting/using Firefox.

{"browser":{"name":"Firefox","version":"3.1b2","numberOfWindows":1,"numberOfTabs":2,"cookieEnabled":true,"language":"en-US","buildID":"20081201080242"},"extensions":{"Adblock Plus":{"version":"1.0.1","firstRun":true,"enabled":true},"Download Statusbar":{"version":"0.9.6.3","firstRun":true,"enabled":true},"Microsoft .NET Framework Assistant":{"version":"1.0","firstRun":true,"enabled":false},"Speed Dial":{"version":"0.7.2.6","firstRun":true,"enabled":true},"Ubiquity":{"version":"0.1.5","firstRun":false,"enabled":true},"WOT":{"version":"20081111","firstRun":true,"enabled":true}},"plugins":[{"name":"Mozilla Default Plug-in","filename":"npnul32.dll"},{"name":"Adobe Acrobat","filename":"nppdf32.dll"},{"name":"2007 Microsoft Office system","filename":"NPOFF12.DLL"},{"name":"Shockwave Flash","filename":"NPSWF32.dll"},{"name":"Silverlight Plug-In","filename":"npctrl.1.0.30401.0.dll"},{"name":"Windows Presentation Foundation","filename":"NPWPF.dll"}],"os":{"oscpu":"Windows NT 6.0","platform":"Win32"},"errors":["[JavaScript Warning: \"Unknown property 'border-radius'. Declaration dropped.\" {file: \"http://1.static.getsatisfaction.com/stylesheets/4db9f52/master.css\" line: 3509}]","[JavaScript Warning: \"Unknown property 'border-radius'. Declaration dropped.\" {file: \"http://1.static.getsatisfaction.com/stylesheets/4db9f52/master.css\" line: 4718}]","[JavaScript Warning: \"Error in parsing value for 'display'. Declaration dropped.\" {file: \"http://1.static.getsatisfaction.com/stylesheets/4db9f52/master.css\" line: 4927}]","[JavaScript Warning: \"Unknown property 'border-bottom-left-radius'. Declaration dropped.\" {file: \"http://2.static.getsatisfaction.com/stylesheets/4db9f52/company.css\" line: 70}]","[JavaScript Warning: \"Unknown property 'border-bottom-right-radius'. Declaration dropped.\" {file: \"http://2.static.getsatisfaction.com/stylesheets/4db9f52/company.css\" line: 71}]"]}