I was able to open Firewall earlier, but then could not get any of the choices to do anything. As computer was also showing a few other odd matters, I rebooted. Now, Firewall is even worse: I can click on the Taskbar icon, which opens the menu, but clicking on any of the entries does nothing at all.
As I was writing this, my previous clicking on Open apparently took effect, but I still cannot do anything there, and the only way I can close it is to click on its icon and select the close window command.
Before I proceed, any idea as to why this bad behavior, as well as suggestions on how to fix it? For example, should I download and install a new copy on top of the existing one, or ought I to remove the installed copy and then reinstall?
As a retired fire chief, I know what a firewall is, and how it is supposed to work…