Slider not working in Firefox

Hoping someone can help me. I’m using the slider on a few pages. It’s working with the testimonials here: https://ronandlisa.com/podcast/ BUT not on the home page via the media slider here: https://ronandlisa.com/ or as the media slider on the MEDIA page: https://ronandlisa.com/media-inquiries/

*They do show up in Chrome, but not Firefox and the used to work fine. Anyone have any ideas why or can help? Thanks ??

The page I need help with: [log in to see the link]