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Firefox wont Firefox play Netflix Video now?

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  • Impendulo yokugqibela ngu cor-el

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Why did Firefox stop playing Netflix Video on Windows 10 this week?

Why did Firefox stop playing Netflix Video on Windows 10 this week?
Iqhotyoshelwe imifanekiso ekwisikrini

All Replies (8)

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That's infuriating. Makes me think Netflix screwed up something on their side.

Hopefully not related but just ruling it out:

  • Are you using a VPN with Netflix?
  • Are you sharing Netflix with someone else? (This should display a completely different error message)

When I used to get that message years ago, Netflix was able to correctly guess that I was using an older Firefox version. Which btw it worked perfectly fine w/o any issues. I believe I was using something as old as Firefox 50 or 60 & it wanted Firefox 80 & higher at that time. I was testing to see what was the lowest compatible version of Firefox & if it was able to stream the movies & tv shows without crashing.

So for you to get this message while using the latest version & having the correct useragent string is just unacceptable. I have been finding a few threads around these forums saying they have been having problems with the WideVine DRM plugin crashing which prevents them from streaming at all. But I can't link your issue to that so I'll keep looking.

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Does it still happen in Troubleshoot Mode?

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I use the latest to Firefox (124.0.1) on iMac sonoma 14.4.1 (Wifi, fiber) I sometimes use Nord VPN 8.17.1. In any case, it is impossible to watch a Netflix movie, Tab crash immediately with Firefox. The problem does not present itself with Safari 17.4.1

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Does it still happen with Developer Edition? Make sure you stay signed out of your sync account when testing.

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I don’t know. I didn’t try. It says too Developer Edition is an unstable testing and development platform. Not for basic user

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Can you do a quick test in Developer Edition? You won't notice much difference from regular Firefox.

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I just tested Developer Edition 125.0b5 of Firefox. Indeed, there is no longer a problem playing movies on Netflix with Developer Edition. Hopefully this will allow the developers of Firefox 124.0.1 to fix the bug that blocks the playback of videos on Netflix.

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You can create a new profile as a quick test to see if your current profile is causing the problem.

See "Creating a profile":

If the new profile works, you can transfer files from a previously used profile to the new profile, but be careful not to copy corrupted files to avoid carrying over problems.

Make sure you the latest Widevine version (4.10.2710.0).

  • Tools -> Add-ons -> Plugins

You can toggle DRM off/on to see if that makes Firefox (re)load DRM components.

You can possibly check the XHR requests in the Browser Console if this doesn't work.

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