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Videos are not working in Firefox

  • 4 replies
  • 5 have this problem
  • 9 views
  • Last reply by bpowell

bpowell
bpowell
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Hey everyone,

This seems to be a common problem, but videos are not working on Firefox, and not just for YouTube. I have updated Adobe Shockwave and Flash, re-installed Firefox, deleted/created a Firefox profile, started up Firefox in Safe Mode, turned off HTML5, checked if any of my plug-ins are disabled, and none of those have helped.

When I get on YouTube and click a video, the video itself doesn't even load. On other sites, in the box where the video should be playing, it says "No video with supported format and MIME content can be found." This kind of confuses me because I have updated the Adobe Flash.

Thoughts? Anything would be appreciated at this point.

-- Brynn

Hey everyone, This seems to be a common problem, but videos are not working on Firefox, and not just for YouTube. I have updated Adobe Shockwave and Flash, re-installed Firefox, deleted/created a Firefox profile, started up Firefox in Safe Mode, turned off HTML5, checked if any of my plug-ins are disabled, and none of those have helped. When I get on YouTube and click a video, the video itself doesn't even load. On other sites, in the box where the video should be playing, it says "No video with supported format and MIME content can be found." This kind of confuses me because I have updated the Adobe Flash. Thoughts? Anything would be appreciated at this point. -- Brynn

Chosen solution

"No video with supported format and MIME content can be found" is displayed when the HTML5 media player is used and not the Flash player and there is no media file specified that Firefox can use.

You can try to toggle the media.directshow.enabled pref on the about:config page.

You can open the about:config page via the location bar and you can accept the warning and click "I'll be careful" to continue

Read this answer in context 👍 0

All Replies (4)

user669794
user669794
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Hello,

Some problems with Flash video playback can be resolved by disabling hardware acceleration in your Flash Player settings. (See this article for more information on using the Flash plugin in Firefox).

To disable hardware acceleration in Flash Player:

  1. Go to this Adobe Flash Player Help page.
  2. Right-click on the Flash Player logo on that page.
  3. Click on Settings in the context menu. The Adobe Flash Player Settings screen will open.
  4. Click on the icon at the bottom-left of the Adobe Flash Player Settings window to open the Display panel.

    The image "fpSettings1.PNG" does not exist.
  5. Remove the check mark from Enable hardware acceleration.
  6. Click Close to close the Adobe Flash Player Settings Window.
  7. Restart Firefox.

This Flash Player Help - Display Settings page has more information on Flash Player hardware acceleration, if you're interested.

Does this solve the problem? Let us know.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Chosen Solution

"No video with supported format and MIME content can be found" is displayed when the HTML5 media player is used and not the Flash player and there is no media file specified that Firefox can use.

You can try to toggle the media.directshow.enabled pref on the about:config page.

You can open the about:config page via the location bar and you can accept the warning and click "I'll be careful" to continue

bpowell
bpowell Question owner
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I unchecked the box, but after restarting Firefox it still didn't work.

bpowell
bpowell Question owner
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So I managed to fix it. By enabling HTML5 the videos are showing again.

Thank you for your replies!