yes. the pluggin was compromised last year.

and the Mozilla programmers have been working hard to fix the bugs. for now, it seems ok for windows but not for mac

but i think google chrome for mac has the plugin available.

https://www.widevine.com/

can you try it out and let us know your results?

Unfortunately, Widevine CDM 4.10.2209.1 no longer supports macOS 10.9 and 10.10 (minimum is 10.11).

• https://support.mozilla.org/en-US/kb/enable-drm#firefox:mac:fx78

Note: The current version of Google Widevine is no longer compatible with older macOS versions such as OS X 10.9 and 10.10. Only macOS versions 10.11 and above are supported.*/questions/1334863 WidevineCdm crashes on Firefox 78.10 (Mac OS)

• /questions/1333906 widevinecdm error on mozilla firefox
• /questions/1333747 Update on/about 21 April 2021 broke WidevineCDM for many users, breaking Netflix/Spotify/etc.