Can not play video on Firefox Ubuntu? If you are missing codecs from your Ubuntu system, Firefox will not be able to play videos in the browser window. Ubuntu, unlike other operating systems, doesn’t have an automatic codec installation system and you need to manually install them from here.
Why can’t I play videos on Ubuntu? If you are browsing an edX course on Linux (Ubuntu, openSUSE, Debian, etc.) and have trouble watching videos, this could be because edX uses some video codecs that might not be available with the installation of your OS.
Does Firefox use FFmpeg? Firefox uses FFmpeg for playing multimedia inside HTML5 <audio> and <video> elements. Go to video-test page or audio-test page to check which formats are actually supported.
How do I enable hardware acceleration in Firefox Linux?
- Open the Firefox preferences page by typing about:config in the address bar. Accept the warning about potential risks, and proceed.
- Search for the following preference. media.ffmpeg.vaapi.enabled.
- The option’s value is set to False by default.