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Unable to play Netflix video

  • 17 replies
  • 1 has this problem
  • Last reply by Vmoutsop

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The issue seems to be with DRM. Although DRM videos play on other sites like on Amazon Prime Video. I've done everything I could find on the internet as to fix this issue like I've checked and unchcecked play DRM content in the settings and cleared cookies and cache and everything but nothing seems to be fixing the issue. Also, everytime I load Netflix I get a little yellow dialogue box saying installing components please try again. This happens everytime I load Netflix. Now when I click on any video it asks me to install SilverLight, I've installed it already but still it asks me to install it to play the video.

All Replies (17)

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did you try to restart firefox after installing silverlight ?

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Yeah I've restarted firefox but the same issue persists. Opening Netflix comes up with the yellow box saying installing components please try again later and when trying to play videos it asks to install silverlight.

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do you have flash player installed? if yes then do these steps:

  • Click the menu button and choose Plugins.
  • Click More or Options for the Shockwave Flash plugin.
  • Uncheck Enable Adobe Flash protected mode.

Netflix should now play . like the problem with Adobe Flash protected mode.

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No, I don't have or at least don't see Flashplayer in the plugins section.

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

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As stated in my first post, I've already done the DRM off/on toggle and that didn't work. Still facing same issues.

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see if the 'always use private browsing' box was checked!.

if yes, then unchecked it.

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Its already unchecked.

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Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove your Firefox program files and then reinstall Firefox. This process does not remove your Firefox profile data (such as bookmarks and passwords), since that information is stored in a different location.

To do a clean reinstall of Firefox, please follow these steps: Note: You might want to print these steps or view them in another browser.

  1. Download the latest Desktop version of Firefox from (or choose the download for your operating system and language from this page) and save the setup file to your computer.
  2. After the download finishes, close all Firefox windows (or open the Firefox menu New Fx Menu and click the close button Close 29).
  3. Delete the Firefox installation folder, which is located in one of these locations, by default:
    • Windows:
      • C:\Program Files\Mozilla Firefox
      • C:\Program Files (x86)\Mozilla Firefox
    • Mac: Delete Firefox from the Applications folder.
    • Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
    1. Double-click the downloaded installation file and go through the steps of the installation wizard.
    2. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

More information about reinstalling Firefox can be found here.

WARNING: Do not use a third party uninstaller as part of this process. Doing so could permanently delete your Firefox profile data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See Back up and restore information in Firefox profiles.

Please report back to say if this helped you!

Thank you.

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Did as you asked, still facing same issues. Didn't fix the problem.

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install Windows Media Pack

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It says already installed.

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Hi slmnkhan2016

I play Netflix and Amazon Prime Video fine on three Windows 10 computers without Flash or Silverlight installed so there's hope :-)

If you haven't already, please try: 1. Firefox Safe Mode: 2. Refresh Firefox:

If that doesn't work, then please copy and paste about:support (or help->Troubleshooting information) into this thread please!



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I've been having the same problem and have gone through every recommended change, setting and check. I've started in safe mode, shutdown all add-ons, etc. and it doesn't work. This seems to have happened recently. I know in the past couple of months it did work but now since I upgraded to 63.01 it doesn't work.

Any help is appreciated.

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Hi vmoutsop, if you check your plugins, do you have Widevine installed and enabled?

  • Ctrl+Shift+a (Mac: Command+Shift+a)
  • "3-bar" menu button (or Tools menu) > Add-ons
  • type or paste about:addons in the address bar and press Enter/Return

In the left column of the Add-ons page, click Plugins.

Then check the list on the right side that Widevine has the status "Always Enabled."

Modified by jscher2000

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Hi jscher2000, thanks for responding.

Yes, Widevine is set to "Always Activate" and Widevine has a last updated of November 2018.

I also have a portable version running that is still at v63, not 63.01 and it seems to work fine.

When I look at the web console I keep seeing this message:

XML Parsing Error: not well-formed Location: Line Number 1, Column 1:

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Is there a way to download the about:config and compare it to a fresh config?

That is the only thing I can think that may be different. Maybe I changed something and it's causing a problem.