I realize there have been several posts in the last few years about this topic, but after reviewing them all I have not found a concrete solution.
One requirement: I do not want to install anything on the local PC; if there is anything to download, it must be done natively through the browser (as in a Java applet). I want to be able to walk up to a new PC on our LAN that has Firefox installed but has never run the application and be able to open it instantly.
For reference, here is a similar question that was asked: 23176331
. The response mentions "a Java applet with the right permissions" but then refers to an ActiveX without following up with the Java suggestion.