Firefox Windows Server 2008

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Fix video and audio playback problems on Firefox for Windows This article applies to Windows Vista/7/8/8.1/10 users only. Some versions of Windows are missing Windows Media Player and other media-related technologies needed to decode and play videos and music properly.

This article applies to Windows Vista/7/8/8.1/10 users only.
Firefox Windows Server 2008

Some versions of Windows are missing Windows Media Player and other media-related technologies needed to decode and play videos and music properly. Microsoft offers a Windows Media Feature Pack (for versions designated as Windows N and KN editions) and a Platform Update Supplement (for Windows Vista and Server 2008) that you can download to add this functionality.

Here are some problems that people have reported when the Windows Media Feature Pack is missing:

  • 'Why is YouTube video blurry, low resolution, or black?'
  • 'Why do I get Flash instead of HTML video?'
  • 'Why doesn't Vimeo work?'
  • 'Why do I get a Netflix error that Microsoft Silverlight is required?'

To resolve this, please download and install the Media Feature Pack or Platform Update Supplement that's appropriate for your version of Windows.

Visit Microsoft's support article to find your version of Windows.
If you update Windows to a newer version, you'll need to install the newer version of the Media Feature Pack even though you installed it for the previous Windows version.

Windows 10:

For Windows 10 version 1903 and later, the latest Media Feature Pack can be added as an Optional Feature from Windows Settings. To add the Media Feature Pack, go to Start > Settings > Apps > Apps and features > Optional features > Add a feature, and then locate Media Feature Pack in the list of available optional features.

The following Microsoft articles provide more information about the individual updates:

  • Version 20H2 - October 2020 Media Feature Pack for Windows 10 N (October 2020)
  • Version 2004 - May 2020 Media Feature Pack for Windows 10 N (May 2020)
  • Version 1909 - November 2019 Media Feature Pack for Windows 10 N (November 2019)
  • Version 1903 – May 2019 Media Feature Pack for Windows 10 N (May 2019)

See the Microsoft article Media Feature Pack list for Windows N editions for other versions.

Windows 8.1:

  • Windows 8.1: N and KN editions (Microsoft Support article KB2929699)

Windows 8:

Firefox Windows Server 2008

  • Windows 8: N and KN editions (Microsoft Support article KB2703761)

Windows 7:

Firefox For Windows Server 2008

  • Windows 7: N and KN editions (Microsoft Support article KB968211)
Firefox Windows Server 2008

Mozilla Firefox Windows Server 2008

Windows Server 2008:

Windows Vista: