Thanks very much FoxFifth. That was pretty much my understanding, but I thought possibly there was a workaround the problem. I don't believe that my version of some of my programs that I use to publish a weekly advertising-only paper here in Middle Tennessee will work with Catalina. I have resisted the macOS upgrade, but I may be forced to pull the trigger. FileMaker Pro17Advanced, for instance, is the program we use to process our classified ads. Just for starters. We already have Chrome installed, that I use for other purposes. Again, thanks for your advanced input on a solution to my problem.