Lightspark is a free and open-source SWF player that supports most of ActionScript 3.0 and has a Mozilla-compatible plug-in. It will fall back on Gnash, a free SWF player supporting ActionScript 1.0 and 2.0 (AVM1) code. Lightspark supports OpenGL-based rendering for 3D content. The player is also compatible with H.264 Flash videos on YouTube.
Lightspark is a free and open-source SWF player that supports most of ActionScript 3.0 and has a Mozilla-compatible plug-in It will fall back on Gnash, a free SWF player supporting ActionScript 1.0 and 2.0 (AVM1) code. Lightspark supports OpenGL-based rendering for 3D content. The player is also compatible with H.264 Flash videos on YouTube.