Citrix make so many products and it is absolutely impossible to deduce what they all do, how (or if) they work together or how to use them. The impenetrable Citrix website is anathema to the slickness and clarity that is Apple. Then there was the Citrix support or rather lack of it. After that it never worked until you manually started the plug-in which was buried deep in the recesses of Mac OS. It was so convoluted under the old online plug-in you had to make sure you had the right version of JAVA installed just to run the installer. The main difference seems to be the installation and set-up. As has already been pointed out, this replaces the old Citrix Online Plug-in.
