Are you using Firefox while running Fedora Linux and have trouble playing videos on Amazon, Netflix, Hulu and Disney+ ?
I had previously discussed how to fix this inside an Arch linux system in an article entitled How to Get Firefox to Play Amazon, Netflix and Hulu Vidos on Archlinux. Since then I’ve discovered the same problem crops up in Fedora linux and required a different solution.
The problem is that Google Chrome will play videos from Hulu, Disney+ and Amazon Prime, but Firefox will not on some systems. Fedora seems to be one of those systems.
Everything from here on in has been updated.
Here’s what I did to fix this problem on Fedora.
Install non-free repository
sudo dnf install \
https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
Change Root User
Install Adobe Repository 64-bit x86_64
rpm -ivh http://linuxdownload.adobe.com/adobe-release/adobe-release-x86_64-1.0-1.noarch.rpm
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux
Then do this on Fedora 31/30/29/28
dnf install flash-plugin flash-player-ppapi alsa-plugins-pulseaudio libcurl
sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
sudo dnf install ffmpeg-libs
sudo dnf config-manager --set-enabled fedora-cisco-openh264
sudo dnf groupupdate Multimedia
Then restart your browser.
Worked for me. Hope it works for you.