title: How many versions of an NPAPI browser plugin do I have to make?
body: <p>I know that if I write a C++ plugin, then I need to have Linux, Mac, Windows versions at least but what's the full list of combinations? NPAPI is supported by many browsers so does that mean the exact same compiled NPAPI plugin binary/installer/whatever for Windows is ready for use in all those browsers on Windows which support NPAPI? Or do you have to 'compile' the same plugin code separately for each browser in some way?</p>