Flash has been broadly discontinued, but you can still run Flash apps, thanks to the Ruffle project.
ruffle is a Flash Player emulator built in the Rust programming language.
And it is amazing. Here, we will cover how to install the Ruffle browser extension, which you can see on the Releases section in the Ruffle project page.
This image is the Adobe Flash end of life link. If you see this image, your flash is permanently disabled.
To use the Ruffle browser extension, as of this writing, you can use a Developer build of Firefox, or Chromium. This will likely remain the case until Ruffle becomes a more stable extension for wider use. Here, we will demonstrate setting up Firefox Developer Edition.
visit the Developer (US-English link here) page for Firefox and download and install the Developer Edition of Firefox.
When you launch the new Firefox for the first time, you will have to allow the application to run
You should then be running a beta build (here,
we will now enable Flash using the Ruffle extension.
about:config in the address bar and hit ENTER.
Accept the Risk and Continue.
xpinstall.signatures.required and make sure the option is set to
Download the extension for Firefox. You should see a confirmation dialog to continue the installation
Continue to installation button, then click
When you are done, you should see a dialog confirming that Ruffle is now installed
And now, you should be able to run Flash apps.
Note that Ruffle functionality may not be at full parity with Flash. But it may help you continue using the Flash apps you are familiar with and can still access.
If you are not using a developer build Browser (Chromium or Firefox Developer Edition) you will most likely be disallowed from installing
Make sure you are running a Developer build first. For further details for Firefox, see this article