date
Mon Mar  2 09:51:55 PM CET 2026

        firefox -v
Mozilla Firefox 148.0

        https://www.firefox.com/en-US/releases/
Version 148.0, first offered to Release channel users on February 24, 2026

        # Enable DRM Content
        address: about:preferences#content

In the Firefox address bar, type about:preferences#content and press Enter.

Scroll down to the Digital Rights Management (DRM) Content section.

Ensure the checkbox Play DRM-controlled content is checked.

        Check the DRM box

Now both Amazon and netflix are playing videos !