Firefox Extensions to Runtime Environment

Discover Firefox Extensions to Runtime Environment.

Provided the core software layer necessary to execute applications and media built on the Adobe Flash platform.

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Microsoft Silverlight

Free

Microsoft Silverlight was a powerful, cross-platform browser plugin and runtime that enabled developers to create rich, interactive web and mobile applications with vector graphics, animations, audio, and video capabilities.

Lightspark

Open Source

Lightspark is a free and open-source alternative SWF player designed to play Adobe Flash content. It acts as a runtime environment and browser extension, offering compatibility with Windows and supporting various Flash functionalities.