@gappiah: You nailed it. A while back I installed the DuckDuckGo search engine to get a more secure search engine. I didn’t realize that they also installed something they referred to a Privacy Essentials. This extension to my browser was blocking the Amazon links from my browser. I turned it off and everything is working great.
Thanks much for the help. I am new at this and I was overthinking the issue. I was so focused on editors and themes that it never occurred to me it might be my browser.