Program downgrade Adobe Flash Player Remove the outdated version Do not update Adobe Flash Player is a deprecated plugin that blocks your browser from playing content like video games and animations on the internet. Adobe Flash does not support many data formats including AMF, SWF, XML, or JSON. The multimedia formats rejected by Flash Player are MP3, FLV, JPEG, GIF, PNG, and .RTMP. Other unsupported features include slow graphics rendering, single-thread video decoding, and no webcam support. Uninstall Flash: Remove Flash Player Downgrade NOT REQUIRED Uninstall the old version of Adobe Flash Player to stop Remove viewing Player