Wie gets, Mike!

While I'm no coding expert, I was able to manipulate the URL of the Play button to play the embedded mp3. I believe a potential source of the problem has to do with the way the content is embeded within the site. (to get the link, right click/view info) For example:

Before: https://yourdailygerman.com/wp-content/uploads/audios/questions-1/question-1-wohin-2-bus.mp3?_=14 After: https://yourdailygerman.com/wp-content/uploads/audios/questions-1/question-1-wohin-2-bus.mp3

The second instance does play the content. Perhaps someone with a better understanding will see this post and add more insight.

For now, keep using a different browser for this website till it can be figured out. I hope this helps a bit.

I see a 403 forbidden response in the Web Console and Network Monitor.

GEThttps://yourdailygerman.com/wp-content/uploads/audios/arm-audio/arm-0.mp3?_=1 [HTTP/2.0 403 Forbidden 124ms]

HTTP load failed with status 403. Load of media resource https://yourdailygerman.com/wp-content/uploads/audios/arm-audio/arm-0.mp3?_=1 failed.

I don't know what this GET parameter (?_=1) is supposed to do.

Thanks and danke. I'll let the site owner know the link is not playing in current Firefox.

@cor-el The first, GEThttps does play in Firefox for me. The second, https does not play for me; it opens a new tab, but does not play.

@calebrye Danke. Both of the links you gave work in my Firefox.

Since my initial post, I borrowed a laptop with WIn 10, installed Firefox 67.02, and the link failed to play on the laptop.

BTW, I'm using Firefox 67.0.2. The page I've been studying is: https://yourdailygerman.com/arm-german-poor-meaning/.

If I right-click the link in the Network Monitor and open the link in new tab then it plays properly with the full url (i.e. ?_=1 appended). This also works if I click edit and resend for this request (no 403 error and the partial file is send). Only with the play button it doesn't work for some reason.