Thank you Aadesh, I was able to resolve my issue. During the removal I also noticed I had Foxit and ashampoo installed on my PC. They were added by the PC manufacturer. I removed both of those as well. The final success was I noticed the small print on the article about Display PDF in browser that suggested to look at the Run Without Permissions. (see below). I was under the impression if you selected 'All Add-ons' it would include those. I suspect this may have been my issue all along. "Note: If you do not see the Adobe PDF Reader add-on, try the other options on the menu. For example, on some systems, the add-on appears when you select Run Without Permission." Once I was able to see the Adobe PDF Reader" in the add-on list and disable it, the application worked correctly. Again, thank you Aadesh.
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