Hi mscott8695, See if something in this article can help get your horses fed:

Websites don't load - troubleshoot and fix error messages https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors

Hello mscott8695,

Would you please take a look at this article :

https://www.thewindowsclub.com/access-denied-dont-permission-access-server

Maybe this URL will allow you access :

https://www.tractorsupply.com/tsc/search/horsefeed

('thought it was worth a try .... )

In your system details you mention that you don't know what plugins are :

When you go to Firefox's menu (the three horizontal lines in the upper right corner, right under the closing X) and then scroll down to "Add-ons"; you will see on the left side "Plugins" (among other things).

"Add-ons" is the collective name for the items you see there.

(I'm telling you this, because of what you told me in the private message you sent me prior to posting a question)

(edit : typo)

Thank you so much for your "personal attention" to this for me! It worked!! Very appreciative. Blessings, mms

mscott8695 said

Thank you so much for your "personal attention" to this for me! It worked!! Very appreciative. Blessings, mms

    I'm so glad it worked - thank you for letting us know !