Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

Avatar for Username

تلاش سپورٹ

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.

مزید سیکھیں

اس تھریڈ کو آرکائیوکیا گیا تھا۔ اگر آپ کو مدد کی ضرورت ہو تو براہ مہربانی نیا سوال پوچھیں۔

Twitter - The Media could not be played

  • 2 جواب دیں
  • 1 میں یہ مسئلہ ہے
  • 1 دیکھیں
  • آخری جواب بذریعہ cor-el

Michael Williams
Michael Williams
more options

I have cleared browser, refreshed Firefox and disabled Add-Ons.

Unfortunately, I am still receiving the "The Media could not be played" message for all videos on Twitter.

Everything works correctly in Chrome.

I even attempted to download the "Media Feature Pack" for Windows 10 (1903). Unfortunately, it is not available when I click Add Feature.

I believe this all started after I updated Windows 10 to 1903.

I have cleared browser, refreshed Firefox and disabled Add-Ons. Unfortunately, I am still receiving the "The Media could not be played" message for all videos on Twitter. Everything works correctly in Chrome. I even attempted to download the "Media Feature Pack" for Windows 10 (1903). Unfortunately, it is not available when I click Add Feature. I believe this all started after I updated Windows 10 to 1903.

تمام جوابات (2)

Michael Williams
Michael Williams سوال کا مالک
more options

about:config

and then set security.csp.enable = FALSE fix the problem.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Did you check the Web Console for possible error messages and warnings?

If you block (third-party) cookies very strict then you can get cross domain issues.

Just to be sure:

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window