Please explain the problem in detail. What happens? What are the exact error messages?

Please provide a public link (no password) that we can check out. No Personal Information Please !

Make sure you are not blocking content.

https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/

https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection

Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

• Delete cookies to remove the information websites have stored on your computer {web link}

• How to clear the Firefox cache {web link}

Thanks Fred - the problem presents itself after I've logged-in and look at "My Units", followed by "My Certificates". When I attempt to see the locations that are available, among others problems during this search, it only shows those locations selected for the current month, will not show locations for other months, and shows no locations outside the U.S. All of this is possible when using Goggle Chrome. I hope this sheds more light on the problems.

Thanks, but I cannot provide a link to the problem because it occurs within my personal Interval International account.

Link to Interval International site: https://www.intervalworld.com/web/my/home

While someone checks out the website: Delete browsing, search and download history on Firefox {web link}

Remove a single website from your history {web link}

Open the History Manager <Control> (Mac=<Command>) <Shift> H. In the search bar, enter the name of the site. Right-click on one of the listings and select Forget About This Site. This should remove all information, including any site settings And Passwords.

Looks like one needs to open an account to test out the website.