Found this but it will be up to users with Firefox to install.
Also requires you to go into the about:config portion of Firefox which can be tricky if you have not been there before and foul something up.
https://support.mozilla.org/en-US/kb/play-windows-media-files-in-firefox#w_checking-if-the-plugin-is-installed
need wmv files to play on click for a web page
