Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

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.

Learn More

About you tube viewing

  • 1 பதிலளி
  • 2 இந்த பிரச்னைகள் உள்ளது
  • 8 views
  • Last reply by Pablo José Prieto

Whenever I open you tube video a sign comes video format MMIF not supported. What's the remedy? On other browsers there is no problem.

Whenever I open you tube video a sign comes video format MMIF not supported. What's the remedy? On other browsers there is no problem.

All Replies (1)

Hello, as I can see in the firefox release notes, it seems that the Android core must ask you about what app do you want to use when you open an youtube URL, like the attached image. If not, try to open the video directly in the Youtube app. Because you have the app installed, not?