This is guide, howto install Adobe Flash Player Plugin version 32 (32-bit and 64-bit) with YUM/DNF on Fedora 32/31/30/29, CentOS 8.0/7.7/6.10 and Red Hat (RHEL) 8.0/7.7/6.10. Currently only Firefox is supported and you need firefox-x11 launcher or fallback to x11. Wayland and Google Chrome/Chromium is not supported anymore.

Install Adobe Flash Player Plugin 32 Fedora 32/31/30/29, CentOS 8.0/7.7/6.10 and Red Hat (RHEL) 8.0/7.7/6.10⌗

1. Change Root User⌗ 

sudo -i
## OR ##
su -

2. Install Adobe YUM Repository RPM package⌗ 

## Adobe Repository 32-bit x86 ##
rpm -ivh http://linuxdownload.adobe.com/adobe-release/adobe-release-i386-1.0-1.noarch.rpm
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux

## 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

3. Install Adobe Flash Player 32 on Fedora 32/31/30/29, CentOS 8.0/7.7/6.10 and Red Hat (RHEL) 8.0/7.7/6.10⌗ 

# Fedora 32/31/30/29 #
dnf install flash-plugin flash-player-ppapi alsa-plugins-pulseaudio libcurl

# CentOS/RHEL 8.0 #
dnf install flash-plugin flash-player-ppapi alsa-plugins-pulseaudio libcurl

# CentOS/RHEL 7.7 #
yum install flash-plugin flash-player-ppapi alsa-plugins-pulseaudio libcurl

# CentOS/RHEL 6.10 #
yum install flash-plugin flash-player-ppapi nspluginwrapper alsa-plugins-pulseaudio libcurl

4. Fedora 31 Users Install firefox-x11 launcher or Disable Wayland⌗

4.1 Install and use firefox-x11 launcher⌗

You can install firefox-x11 launcher on Fedora using following command:

dnf install firefox-x11

Start firefox using firefox-x11 command:

firefox-x11

4.2 Disable Wayland and Fallback Xorg⌗

If you can’t use firefox-x11, then you can disable Wayland modifying /etc/gdm/custom.conf, uncomment WaylandEnable=false line:

# GDM configuration storage

[daemon]
# Uncomment the line below to force the login screen to use Xorg
WaylandEnable=false

[security]

And reboot:

reboot

5. Verify that the Flash Player Plugin is working⌗

Restart your browser and open following page for testing Adobe Flash Plugin:
Check is Adobe Flash Plugin Working

Open Mozilla Firefox and write about:plugins on address bar. Results should look like following:

Adobe Flash Player 32 (Firefox 70) on Fedora 31⌗

Adobe Flash Running on Fedora 31 Firefox 70