over-reporting Phishing? MAC

Norton 360 for Mac
1

I just installed updates to my Norton Anti-Virus (MAC 10.6.8, Firefox 17.0.1).  Since then, I've gotten blocked everytime I try to follow a link to pages that I KNOW are safe (facebook.com, cnn.com, weather.com,).  I can direct-enter the URL of those sites and get it, but I can't get there via links from e-mail or other sites.  What's the issue??

 

(This is the exact message I got when clicking on a link on a twitter page--it's supposed to be taking me to a FB page.  I verified that I can open FB on my own in another window and navigate around just fine.  What's going on?  Oh, and I can't override it by clicking the "I Want to view this web site anyway" link--it takes me to a page that shows the FB connect logo and that's it)

 

This site is a known fraudulent site. Accessing this site could make you
vulnerable to criminal activity.

To avoid fraudulent sites:

  • Don't reply to unsolicited email or pop-ups asking for personal or financial information, and don't use any links in the message.
  • If concerned about your account, contact the company by phone, or open a new browser session and type the company's Web address yourself.
  • Use anti-virus software and a firewall, and keep them up-to-date.
  • Don't email personal or financial information.

I want to view this Web site anyway
It is recommended that you DO NOT visit this Web site.