In looking at the rioutil, I'm very doubtful you'd need to install any foreign firmware. However, you would need to be running Linux. KRioUtil is under active development for KDE users. And Prioutil which is the now discontinued Perl front-end. All these use rioutil(protocol source files appear to be available there) as the basis for their implementations. Good news is that it appears they support the bulk of the flash player line.

Good luck in your efforts,
Tim