The latest version of Firefox isn't playing a streaming radio station (WWOZ, [https://www.wwoz.org/listen/player/]). The site appears to load fine but the Play button does nothing when I click it. (That is, it turns into a Pause button as it should for less than a second before reverting to a Play button.) It works fine on a different browser and on firefox on a different computer. This system, where it does NOT work is: Firefox 67.0.4 (64-bit) for Ubuntu canonical - 1.0 Running on Ubuntu 18.04.2 LTS, 64 bit, GNOME 3.28.2 It DOES work on: Version 75.0.3770.90 (Official Build) Built on Ubuntu , running on Ubuntu 18.04 (64-bit) (same laptop as above) and it DOES work on: Firefox 67.0.4 (64-bit) for Ubuntu canonical - 1.0 Running on Ubuntu 16.04 LTS (different laptop from above) Any idea why this is happening? Any other troubleshooting info I can provide?