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.

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.

Rohkem teavet

video format or mime type is not supported

  • 2 vastust
  • 15 on selline probleem
  • 1 view
  • Viimati vastas mac1574

more options

I can play youtube videos but when I go on to a video chat room website I get this message "video format or mime type is not supported"

I can play youtube videos but when I go on to a video chat room website I get this message "video format or mime type is not supported"

All Replies (2)

more options

The 'No video with supported format and MIME type found' error message is about the HTML5 media player. So you do not appear to have support in Windows for playing the media file(s) in the formats that are available.

See also:

https://support.mozilla.org/kb/viewing-html5-audio-and-video Setting media.directshow.enabled to false will disable the HTML5 media player for H.264 content and might make a website to use a Flash player as fallback. You may have to remove the cookies to make this work.

more options

I'm using Firefox on my phone so it's not an windows issue. My phone is a android so I need help getting it work on my phone.