to avoid falling into the 32 bit-trap with the next OS Catalina I made a copy of Mac OS within Parallels Desktop and moved my Dreamweaver installation into that virtual machine which runs OS X 10.13. But now I stumbled into another one, the Extension Manager fails to show any content. The virtual machine is working, Dreamweaver CS 6 is working, access rights are OK. I deleted the folder ~/Library/Application Support/dmxzone-extension-manager but this had no effect. I tried to follow your instructions to generate the file chrome_debug.log, but that didn't work either.
Do you have any idea that may fix this issue? I'm running out of those.