Source:
<a href="http://opensource.adobe.com/wiki/display/site/Home" rel="nofollow">http://opensource.adobe.com/wiki/display/site/Home</a><p>Flash's ActionScript engine, for instance, was donated to opensource and subsequently used to make Firefox faster.<p>(Adobe Flash Player includes licensed codecs from Fraunhoffer, On2 VPx series, H.264, more... Adobe can distribute them, but cannot license them for redistribution by others.)