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EME-Free ESR?

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I'm looking to deploy Firefox ESR on macOS, but I am looking for one that doesn't support EME. I see on ftp.mozilla.org that there are EME-free versions of Firefox available for Mac, but not Firefox ESR. An extensive web search didn't return anything either. Am I missing something it, or should I be using policies to prevent EME on Firefox ESR? I would like it disabled for all users by default without the option to enable it.

I'm looking to deploy Firefox ESR on macOS, but I am looking for one that doesn't support EME. I see on ftp.mozilla.org that there are EME-free versions of Firefox available for Mac, but not Firefox ESR. An extensive web search didn't return anything either. Am I missing something it, or should I be using policies to prevent EME on Firefox ESR? I would like it disabled for all users by default without the option to enable it.

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Autoconfig file maybe?

  • browser.eme.ui.enabled => false
  • media.eme.enabled => false

See: Customize Firefox using AutoConfig