Plugin project to detect & launch existing app


I am looking for someone who knows this framework well in order to build a cross browser plugin that detects and launches an installed exe app of mine.

The plugin could be installed as a separate tool or as part of our app.

If you also happen to have wide experience in audio codecs, that might be helpful as well.

The product is a B2B collaboration tool, currently operating.

The purpose is to remove reliance on java web start and we have the exe portion done.