Only versions OS X 10.11 and above are supported.
Note: The current version of Google Widevine is no longer compatible with older Mac operating systems such as OS X 10.9 and 10.10. See Watch DRM content on Firefox for more information. General panel Digital Rights Management (DRM) Content setting, Play DRM-controlled content is check marked and that the Google Widevine plugin is enabled. If you have problems playing DRM-controlled content from Amazon Prime, Netflix, Hulu, Disney+ and other streaming services, make sure that your Firefox Options Preferences Settings For more information, see Fix video and audio playback problems on Firefox for Windows and HTML5 audio and video in Firefox.ĭigital Rights Management (DRM) protected videos However, MP4 containers usually depend on platform decoders for AAC and H.264 audio and video streams. Use your system's software package manager and ensure that PulseAudio is correctly installed.įirefox has built in support for open media formats usually associated with MP3, WebM, Ogg and Wave containers. Most Linux distributions now come with PulseAudio pre-installed. The PulseAudio software is required to play any audio from Firefox. If you see a notification saying ' To play audio, you may need to install the required PulseAudio software', it means that Firefox cannot find or use PulseAudio. You may need to install the required PulseAudio software