Firefox_40198241_pl.mkv

While Firefox has recently added better support for MKV playback, you may still need to use a dedicated player if the video stream inside is encoded with a specific codec like HEVC.

It is an MKV (Matroska) file, a container that can hold video, multiple audio tracks, and subtitles in one file. Firefox_40198241_PL.mkv

To help me find a more specific "paper" for you, could you tell me: While Firefox has recently added better support for