Simple Trick to Watch Netflix in Full HD on Firefox Browser

Paying for full HD streaming to Netflix and yet it doesn’t play in 1080p?

It’s because, for some stupid reasons best known to streaming services like Netflix, they do not stream full HD content in the Firefox browser. Not in Linux, not in Windows, or any other operating system.

You can check it by pressing Ctrl+Alt+Shift+D while playing Netflix in Firefox but NOT in full-screen mode.

netflix not playing full hd firefox
Netflix streaming in 720p

Don’t despair. There is a way to stream Netflix in 1080p. Let me show you how.

Enabling Full HD streaming on Firefox With Extension

There is a third-party extension created by a lone developer that allows you to stream Netflix in full HD (1080p) in the Firefox browser.

The extension includes a “bundled version of Netflix’s playercore, which is then modified to include additional profiles depending on what you select in the options and re-allow toggling the bitrate menu.”

Go to the extension page in Firefox and click on “Add to Firefox”

firefox netflix 1080p extension
Netflix 1080p Firefox Extension

When you click on the “Add to Firefox” option, you should see pop-up like the one in below screenshot. Hit Add button here.

adding netflix 1080p firefox extension
Adding Netflix 1080p Extension

Once the extension has been added, restart Firefox.

Now when you play Netflix content, it should be streamed in full HD, i.e., 1080p.

Verify it. Play something in Netflix, don’t go fullscreen, press Ctrl+Alt+Shift+D to get the streaming stats. You should notice the improved quality now.

netflix playing full hd in firefox
Verify streaming quality with Ctrl+Alt+Shift+D keys

Press the same keys again to get rid of the stats overlay.

You should also see an HD tag beside the content in the browsing mode.

netflix playing full hd firefox
Netflix now displays the content in 1080 pixels (1080 is now HD, 720p is SD)

This extension only works for Netflix. It DOES NOT work with Amazon Prime Video, Diseny+ and other streaming services.

Also, it won’t play Netflix in ultra HD (UHD or 4K). I have a laptop with a 4K screen. While it plays ultra HD content on MS Edge browser in Windows 11, it got stuck at 1080p even with the extension.

I hope the developer of the extension also brings the 4K feature.

Conclusion

I don’t know why Firefox could not do this on its own when a lone developer did it by creating an extension. Perhaps some sort of legal issue.

What baffles me is why streaming services ignore Firefox and other “non-official browsers”? Netflix plays full HD on Edge in Windows but not on Edge in Linux or other operating systems. Similarly, Netflix streams full HD on Chrome in ChromeOS but not on Linux.

And Mozilla, with all its might, could not convince Netflix and these streaming services to bring high-quality streaming to its flagship browser. No wonder Firefox sees a continual decline.

Rant aside, I hope this helps you play Netflix in full HD on Firefox. If it works for you as well, let me know in the comments.

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  • Firefox doesnt have browser based DRM that prevents streaming netflix via discord or other services. Hence Netflix not letting them do full hd.

  • I believe the resolution is uncapped (or less of a cap) in Edge on Windows and Safari on Mac etc. because those combos can enforce hardware DRM, preventing screen capture. Other browsers don’t have hardware DRM accessibility, so the resolution is capped by streaming platforms to make it not worth capturing. I’ve read this in the past, it may not be entirely accurate. It does seem logical though. I suspect that whatever loophole this plugin uses will be plugged up soon enough.

    • > “I believe the resolution is uncapped (or less of a cap) in Edge on Windows and Safari on Mac etc. because those combos can enforce hardware DRM, preventing screen capture. Other browsers don’t have hardware DRM accessibility, so the resolution is capped by streaming platforms to make it not worth capturing.”

      Not entirely true. All browsers do not support DRM by itself. Browsers support DRM via Widevine/PlayReady/FairPlay plugins. DRM plugins have direct access to system (and via system -> to HDCP protection if system and hardware support it). Plugins could do what they want no matter what browser is “underneath” (including block recording windows with HDCP protected media). Technically there is no problem to support 1080p/4K in Firefox or any other browser. It is rather “political” decision to restrict 1080p/4K only to TVs/Android/IE/Edge/MetroUWP app.

      > “I suspect that whatever loophole this plugin uses will be plugged up soon enough.”

      Technically speaking “Netflix 1080p” it is not plugin, it is extension (no direct access to system). Yes, Netflix could easily “broke” this extension but I’m using it from years and it is still working (periodically update needed but probably related to Netflix website changes). So it looks like that Netflix “do not care”.

  • It is not about Mozilla Firefox fault. It is about Netflix deals or something. 1080p is artificially restricted to Internet Explorer (now called Edge) in Windows. Even Windows version of Chrome is restricted to 720p. This restriction is lifted only for Chrome in ChromeOS and as far I know – extension works by “pretending” it.

    4K is impossible in Linux because of DRM Widevine L1 and HDCP copy protection support requirements. I mean in open-source Linux distributions, on commercial systems like Android – 4K and DRM Widevine L1 is supported.

    • MS Edge is not IE. It’s a completely different browser.

      If this extension works by spoofing the user agent, then any extension that can impersonate the correct browser should be able to access the HD stream.