ModernKit.one

Flash Player 2021

Browser extension with a one-click Flash emulator,
making Flash playable in 2021 and beyond.

Add to Firefox:

Add to Microsoft Edge:

About Flash Player 2021 browser extension

What is Flash Player 2021?

Flash Player 2021 is a browser extension which provides a third-party emulator to fix "Adobe Flash Player is blocked" messages in your browser. The extension will remove those messages and allow you to play Flash in any website with a single click.

How do I use the extension?

It's easy to use: Visit a website with Flash content, click once on the play button and that's it! The extension does all the work for you. No need to download extra apps, use old Flash versions, or be without your favorite games.

Where can I use the extension?

You can use the extension on any website to play games, videos, and other Flash content. We're working on the feature to play local files saved on your computer.

Other extensions promise Flash support. What makes this one different?

Most other extensions named "Flash Player" do not actually play Flash content, they only bookmark or save Flash files without the ability to play them. All of those extensions stopped working in January 2021 or before when Flash was disabled in browsers. In comparison, our extension provides a third-party emulator to play Flash content.

What was updated in the extension's recent versions?

Please see the Flash Player 2021 changelog for details on version updates.

Flash Player 2021 Support

Some content shows this notice: "This content contains ActionScript 3 which is not yet supported"

The third-party emulator we use (Ruffle) has limited ActionScript 3 support. You can try to click "I understand, play anyway" if you see this notice, but it may not work correctly. We cannot provide a timeline on when AS3 will be supported.

Some content does not play correctly

The extension uses a third-party Flash emulator (Ruffle) which may not work with all content. Please send the URL with the error to support@modernkit.one for analysis. We may forward the issue to the emulator maintainers. This is not a guarantee on behalf of the maintainers or ModernKit.one that any issues will be fixed by a specific timeline or at all. We will do our best to resolve your issues as soon as possible.

What is Ruffle?

Ruffle is the emulator ModernKit.one's Flash Player 2021 uses to play Flash content. Ruffle is not affiliated with ModernKit.one in any way. We use Ruffle under the MIT license.

Can I add this extension to Google Chrome?

The extension is currently undergoing review for the Google Chrome webstore. Once approved, we will add links to install. If you use Microsoft Edge or Mozilla Firefox, you can install the extension now using the links at the top of this page.

Issue still not resolved?

For more help with ModernKit.one's Flash Player 2021, contact support@modernkit.one

Adobe Flash Player is a trademark of Adobe Systems Inc.