I subscribed to an educational series that includes several kinds of presentation, including MP3, PDF, and video. The videos do not work. Not at all. I was directed to try a different browser, which I did: microsoft edge. The videos play using that browser. I MUCH prefer to use Firefox -- do not like anything microsoft, but here we are, trapped in bill gates' monopoly. I looked at "settings" but was not able to see anything there I thought would allow these videos to play in firefox. Be advised, I am NOT a computer person, so anything you might suggest, please be very literal, specific and define any acronyms -- do not assume I know anything about this stuff, because I don't -- I do not speak computer. Again, I MUCH prefer to use firefox so I am hoping you can help me to watch these videos in firefox. The website is Goodness Lover (weird name, I know) it deals with diet, microbiome research etc. thank you, Rick McBride wopela@earthlink.net