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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

format is not supported and i tryed clearing catche and reinstaling firefox

  • 3 amsoshi
  • 0 sa na da wannan matsala
  • 17 views
  • Amsa ta ƙarshe daga James

more options

i just upgraded to win 10 downloaded firefox and when i play videos i get format is not supported error when i tryd playing same videos on explorer those videos worked they didint worked on opera gx too i already tried deliting firefox and clearing all left file with cc cleaner dont know what to do

i just upgraded to win 10 downloaded firefox and when i play videos i get format is not supported error when i tryd playing same videos on explorer those videos worked they didint worked on opera gx too i already tried deliting firefox and clearing all left file with cc cleaner dont know what to do

All Replies (3)

more options

Are you on a desktop or laptop? Manufacture and Model? What video card(s) are installed?

more options

You can check the Web Console for relevant media messages.

more options

klaidaskubilius said

i just upgraded to win 10 downloaded firefox and when i play videos i get format is not supported error when i tryd playing same videos on explorer those videos worked they didint worked on opera gx too

Are you by chance using a KN or N edition of Windows 10?

Fix video and audio problems on Firefox for Windows N editions https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows

An gyara daga James