I've tried in Safe Mode as well and still can not open the links.

Please explain the problem in detail. What happens? What are the exact error message(s) ?

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}

If there is still a problem, Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Did this help?

While you are in safe mode;

Try disabling graphics hardware acceleration {web link} in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

I updated shortly before your post, so I assume you didn't see it. I tried safe mode and it still didn't work. I just tried turning off hardware acceleration and still nothing. I'm going to try clearing cookies and cache, although I was hoping to avoid that.

As for error messages, there are none. I only get a connection time out after a few minutes. I've attached a screenshot, although it doesn't show any detail.

I've tried everything you suggested Fred and still nothing.

See if this helps; There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.

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

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

https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites

What do the security warning codes mean

Hi dunlopty, the error screen says https://www.amazon.com/ didn't respond within the expected period of time.

Can you access the site directly without going through the Google search results page?

Is the problem with "organic" web results -- the ones below the advertising sections at the top of the results -- or is it limited to the ads?