Which website are you trying to go to? do you actually have a salesforce account?

Easy fix, in your "about:support" click on "refresh firefox"

our website is www.nsdayton.com and yes we have salesforce account that is tied into site. Refresh did not fix issue. It redirects me to the secure log in for my nsdayton site.

Goto your settings and check to see if your cookies are enabled for the website. Do you have any addons installed? also check your plugins in FF, is there one for your anti-virus listed there?

In your Preferences -> Advanced -> Network settings do you have information filled out in there?

Run a scan once with both of these (then remove if you wish). JRT: https://downloads.malwarebytes.com/file/jrt/

Then with the standard malwarebytes package https://www.malwarebytes.com/products/

Thank you for everyone's suggestions. It seems it was as simple as deleting the cookie for the secure salesforce site. As soon as I did that boom it loaded our web site.

Thanks again!