We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

H264 hardware decoding in Windows XP.

  • 2 replies
  • 2 have this problem
  • 30 views
  • Last reply by cor-el

davexnet02
davexnet02
more options

In about:support I see GPU accelerated Windows: 2/2 Direct3D 9 (OMTC) Supports HW H264 decoding Z: No: Failed to create H264 decoder

Driver version 327.23, video card Nvidia GT 610.

Here's my question. Does HW decoding of H264 work under any circumstances in XP? Or did Firefox decide not to implement it?

Thanks for any info

In about:support I see GPU accelerated Windows: 2/2 Direct3D 9 (OMTC) Supports HW H264 decoding Z: No: Failed to create H264 decoder Driver version 327.23, video card Nvidia GT 610. Here's my question. Does HW decoding of H264 work under any circumstances in XP? Or did Firefox decide not to implement it? Thanks for any info

All Replies (2)

David Walczysko
David Walczysko
more options

Good afternoon,

here is the technical support Mozilla's Firefox, not technical support Windows or graphics card. With this question, contact technical support for Windows. Thank you for understanding.

Best regards, David Walczysko Volunteer supporter

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

I don't think that H.264 and MP4 support on Windows XP is available. On XP you need to use WebM. For H.264 you would need a plugin like VLC.