Mozilla will shut down Pocket’s services on July 8, 2025. At that time users will no longer be able to access the Pocket website, apps and API. You can export your saved items and API data until October 8, 2025 before they are permanently removed. For more information, see this article.

Avatar for Username

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 thread was archived. Please ask a new question if you need help.

Firefox won't play any videos on a fresh install

  • 3 replies
  • 1 has this problem
  • 41 views
  • Last reply by FredMcD

ffox1987
ffox1987

I just formatted and installed Windows 10 (Pro N, 64-bit, 1909 update) and then installed firefox.

To my surprise, no videos can be played on any website (except youtube).

The video either doesn't load or shows the "Error loading player: No playable sources found" error.

I had no extensions installed, tried refreshing, tried disabling hardware acceleration; nothing solved it.

All content plays fine on chrome.

I just formatted and installed Windows 10 (Pro N, 64-bit, 1909 update) and then installed firefox. To my surprise, no videos can be played on any website (except youtube). The video either doesn't load or shows the "Error loading player: No playable sources found" error. I had no extensions installed, tried refreshing, tried disabling hardware acceleration; nothing solved it. All content plays fine on chrome.

Chosen solution

If you have Windows 10 N or KN then you may not have the Media Feature Pack installed. https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows

Read this answer in context 👍 1

All Replies (3)

FredMcD
FredMcD

Chosen Solution

If you have Windows 10 N or KN then you may not have the Media Feature Pack installed. https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows

ffox1987
ffox1987 Question owner

Thanks Fred, installing the media feature pack solved the problem

FredMcD
FredMcD

Glad to help. Safe Surfing.