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

This video can't be played

  • 2 replies
  • 1 has this problem
  • 9 views
  • Last reply by zeroknight

more options

When attempting to play some videos with Firefox browser, mainly from X (Twitter) I receive "This video can't be played." However, I can't play them with Safari either. But it will play on Safari on another computer. I don't know what is wrong. Could it be some settings on my computer? I'm not a computer ace but know some things. Thank You for any help/ advice.

When attempting to play some videos with Firefox browser, mainly from X (Twitter) I receive "This video can't be played." However, I can't play them with Safari either. But it will play on Safari on another computer. I don't know what is wrong. Could it be some settings on my computer? I'm not a computer ace but know some things. Thank You for any help/ advice.

All Replies (2)

more options

Is there more detail in the Web Console about playing media?

more options

Does it still happen in Troubleshoot Mode?