Hi, can you find an "Advanced" button on that page? If you click that, Firefox should list additional technical information. In particular, there should be an error code in ALL_CAPS that may lead to a solution here: How to troubleshoot security error codes on secure websites.

Can you track it down? If not, what error code are you getting?

You can check the connection settings.

• Options/Preferences -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

• https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

Thank you both for taking the time to reply. Unfortunately, neither of the two replies have moved me any closer to a resolution.

What is mystifying is Firefox works perfectly on my account, when we move to my wife's account is when the problems start. I have made sure settings are identical on both accounts. This is weird! Thanks

Sometimes this can happen if you connect via a secure HTTPS connection, but the server doesn't have a certificate installed and only works via HTTP. So you can try to access this website via http://

Also, what is the text of the error page and do you get a specific error code?

Thanks all for your replies. I have limited time to spend getting this laptop up and running, so have decided to can Firefox and use Chrome. I'll revisit Firefox later when time allows as I would prefer to use Firefox