Support for Windows XP

For our ministry we need an audio / podcast player, which is working under Windows XP, as there are still PCs in third world countries, using this operating system. When I open the Podlove website on a Virtual machine with windows XP SP 3 and Firefox Version 52.9 (ESR Version) on it, the player does not show. Just an “empty space” is shown. Would there be any chance to get the player running in a wordpress site under XP? Firefox Version 52.9 is to my knowledge the latest version released for XP.
Thank you very much!