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I'm having problems with DRM (forward lock) protected audio files in Firefox. I the following post I have commented some issues related to DRM and mp4 files:

http://forums.mozillazine.org/viewtopic.php?f=47&t=2788283

But I'm wondering if Firefox has a built-in DRM engine, since I don't observe that the protected files are encrypted with the AES-128 algorithm and turn into a dcf or fl file. If I open the downloaded files the specific DRM headers:

--boundary-1 Content-Type:audio/aac Content-Transfer-Encoding:binary

are visible. In Chrome the file has a dcf extension and has following headers: audio FWLK(.....

I think that in Chrome the file gets converted into a specific forward lock file but in Firefox this process doesn't happen.

Does Firefox have a DRM engine?

Many thanks for your help and advice.

laalto
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amartin
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  • for future readers , I recently wrote a post for drm ( aameer.github.io/articles/digital-rights-management-multi-drm/ ) and it also includes a section of current state of drm and I have covered widevine which is supported by firefox 47+ on windows and mac – Aameer Nov 16 '17 at 14:42

2 Answers2

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Firefox doesn't have a built-in DRM engine, nor does any other open-source browser.

Boris Zbarsky
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  • Does Google Chrome implement DRM support only in mobile versions? Thank you for your help. – amartin Jan 07 '14 at 07:17
  • Chrome certainly has some DRM support on ChromeBooks too. They don't (yet) have support for it on desktop, but they're clearly working on it. – Boris Zbarsky Jan 07 '14 at 15:27
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Mozilla is now unfortunately planning to have DRM support in Firefox. It will be an open source sandbox around a binary blob from Adobe.

Hjulle
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