Blocked URL

Question

Why has Firefox blocked a legitimate "URL"
I am using Norton 2012 IS and this site states that the URL shown is legit, therefore disputes your browser
Text excerpt from Mozilla Browser
This Connection is Untrusted
You have asked Firefox to connect securely to uniden.com.au, 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.
Norton Website Security provides the following information
Threat Report Text excerpt
Total threats found: 0
Small-whitebg-green Viruses (what's this?)
Threats found: 0
Small-whitebg-green Drive-By Downloads (what's this?)
Threats found: 0
Small-whitebg-green Malicious Downloads (what's this?)
Threats found: 0
Small-whitebg-green Worms (what's this?)
Threats found: 0
Small-whitebg-green Suspicious Applications (what's this?)
Threats found: 0
Small-whitebg-green Suspicious Browser Changes (what's this?)
Threats found: 0
Small-whitebg-green Security Risks (what's this?)
Threats found: 0
Small-whitebg-green Heuristic Viruses (what's this?)
Threats found: 0
Small-whitebg-green Adware (what's this?)
Threats found: 0
Small-whitebg-green Trojans (what's this?)
Threats found: 0
Small-whitebg-green Phishing Attacks (what's this?)
Threats found: 0
Small-whitebg-green Spyware (what's this?)
Threats found: 0
Small-whitebg-green Backdoors (what's this?)
Threats found: 0
Small-whitebg-green Remote Access Software (what's this?)
Threats found: 0
Small-whitebg-green Information Stealers (what's this?)
Threats found: 0
Small-whitebg-green Dialers (what's this?)
Threats found: 0
Small-whitebg-green Downloaders (what's this?)
Threats found: 0
Small-whitebg-green Embedded Link To Malicious Site (what's this?)
Threats found: 0

Answer 1

I am able to access it fine. It may have something to do with your addons but we can troubleshoot your cache and cookies first and do a reset then check on addons. Here are the instructions.
Many site issues can be caused by corrupt cookies or cache. In order to try to fix these problems, the first step is to clear both cookies and the cache.
Note: ''This will temporarily log you out of all sites you're logged in to.''
To clear cache and cookies do the following:
#Go to Firefox > History > Clear recent history or (if no Firefox button is shown) go to Tools > Clear recent history.
#Under "Time range to clear", select "Everything".
#Now, click the arrow next to Details to toggle the Details list active.
#From the details list, check ''Cache'' and ''Cookies'' and uncheck everything else.
#Now click the ''Clear now'' button.
Further information can be found in the [[Clear your cache, history and other personal information in Firefox]] article.
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
#Firefox will open with all factory defaults applied.
Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
'''Try the Firefox Safe Mode''' to see how it works there. The Safe Mode is a troubleshooting mode, which disables most add-ons.''
''(If you're not using it, switch to the Default theme.)''
* You can open the Firefox 4.0+ Safe Mode by holding the '''Shift''' key when you use the Firefox desktop or Start menu shortcut.
* Or use the Help menu item and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Don't select anything right now, just use "'Start in Safe Mode"''
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shift key) to open it again.''
'''''If it is good in the Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one.
Please follow the [[Troubleshooting extensions and themes]] article for that.
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
Did you know that Mozilla Support is helped out by volunteers? Be part of SUMO! http://mzl.la/OJtpch