Mozilla already supports (in code, not principle) H.264 by leveraging non-Mozilla code. It's not usually a problem on Windows on Mac since the user has already

Mozilla already supports (in code, not principle) H.264 by leveraging non-Mozilla code. It's not usually a problem on Windows on Mac since the user has already paid for a license when they bought the OS, but on Linux (gstreamer) it can cause patent violations within US. I hope (an believe) Mozilla will keep that functionality to use one of multiple backends (Windows's fedia framework, gstreamer etc.) when it adds this Cisco binary.