Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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.

No video with supported format and MIME type found.

  • No replies
  • 3 have this problem
  • 94 views
steve665
steve665
more options

I uploaded some videos to my website (burchmusic.com). They can be played on Safari, but not on Firefox. This is the error message I get: No video with supported format and MIME type found. I'm on MacBookPro running OS Sequoia 15.2.

I uploaded some videos to my website (burchmusic.com). They can be played on Safari, but not on Firefox. This is the error message I get: No video with supported format and MIME type found. I'm on MacBookPro running OS Sequoia 15.2.