Program downgrade Adobe Flash Player Uninstall the oldest version Downgrade later Adobe Flash Player is an unnecessary plugin for your browser that blocks you from viewing anything but text and images on the web: Adobe Flash Player rejects several data formats excluding AMF; SWF, XML and JSON. The multimedia formats not supported by Flash exclude MP3, FLV, JPEG, GIF, PNG, and RTMP. Other unsupported features exclude accelerated graphics rendering; no multi-thread video decoding and no webcam support. Remove Flash Player. Downgrade Flash Player Removal NOT REQUIRED Uninstall previous edition of Adobe Flash Player to stop Remove viewing: Player