Ruffle is a free, open-source Flash emulator written in Rust. It runs Flash content and works in Firefox today.
Here is a comprehensive guide to navigating Flash content in Firefox in 2026. The Status of Flash Player in Firefox (2026) plugin flash player firefox
Firefox 85 was the first version to permanently remove Flash support. Ruffle is a free, open-source Flash emulator written in Rust
You might find forum posts or YouTube videos showing how to: Ruffle is a free