https://www.youtube.com/html5 reports my browsers (Firefox 66.0.5-1.fc30 and Chromium 73.0.3683.86-2.fc30) on my Gigabyte GA-970A-UD3 with a Radeon RX-580 GPU don't support H.264. I've tried installing gstreamer1-plugin-openh264.x86_64, mozilla-openh264.x86_64, and openh264.x86_64, from fedora-cisco-openh264 but that didn't help.
What's my next step?
