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what happened to MP3 support in Firefox 26?

  • 13 replies
  • 8 have this problem
  • 832 views
  • Last reply by jscher2000

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I cannot play MP3 or DVD's any longer. Everything used to work perfectly, but today they do not. I have downloaded Real Player again and it worked for half the MP3 and stopped. I tried downloading Google Chrome and it did not work at all. Uninstalled Google Chrome. My wife and I are members of a study group that use MP3's for every lesson. We've sat by my monitor and watched literally hundreds of lessons satisfactorily. It's most frustrating to be unable to continue. Something is wrong, but how do I fix it?

Chosen solution

Firefox 26 changed how MP3s are played on Windows XP. Is the problem on an XP system, or in XP mode on Windows 7?

On Windows Vista and higher, Firefox may use the Media Foundation, components of Windows, to decode MPEG media and play it natively, instead of using a plugin. If you want to try disabling that, there is a hidden setting.

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste media and pause while the list is filtered

(3) Double-click the media.windows-media-foundation.enabled preference to switch its value from true to false.

(4) Double-click the media.windows-media-foundation.play-stand-alone preference to switch its value from true to false.

Does that make any difference?

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All Replies (13)

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Firefox didn't change anything in this regard. Firefox uses your system codecs or plugins to run media files.

You could see if these articles help.

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Chosen Solution

Firefox 26 changed how MP3s are played on Windows XP. Is the problem on an XP system, or in XP mode on Windows 7?

On Windows Vista and higher, Firefox may use the Media Foundation, components of Windows, to decode MPEG media and play it natively, instead of using a plugin. If you want to try disabling that, there is a hidden setting.

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste media and pause while the list is filtered

(3) Double-click the media.windows-media-foundation.enabled preference to switch its value from true to false.

(4) Double-click the media.windows-media-foundation.play-stand-alone preference to switch its value from true to false.

Does that make any difference?

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It's working beautifully. Thank you very much.

Bernie241

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Yes, it worked perfectly yesterday. Today, however, it stumped me. It simply will not start. Tried enabling cookies. Tried reversing what you suggested. Then changed it back again. Nothing makes any difference--I'm stumped!!! ?????????

Bernie241

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Are you opening a site with MP3 media embedded and a visible control bar, or are you opening the MP3 directly into its own tab? If you check the address bar, are there any notification icons to the left of the globe/padlock area? The icons for plugins look like a piece of Lego.

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I'm using an MP3 disk. When inserted in the PC nothing happens. It used to take several seconds to present a table of lessons from which I could choose the lessen for the day. There are no icons in any address bar (Google). Frankly this is most frustrating.

Bernie241

Modified by Bernie241

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This could be a Windows "autoplay" issue. For security reasons, that might have been turned off, and/or there might be a little pop-up in the background asking how you want to access the disk.

Can you minimize all windows (show desktop), then pop the disk in and watch for any pop-ups or notifications? If nothing happens, use Windows Explorer or My Computer to access the disk and look for the autorun file and see whether you can run that.

Alternately, is the index page in your Firefox history? If you know any part of the file name or the page title, you may be able to access it that way.

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I do not have Windows Explorer. When I closed all windows and clicked on My Computer, then on DVD RW Drive (D:) a window popped up with an X inside a red circle, then it reported, "Application not found." A search for "autorun" also failed to provide any relief. I'm not understanding your "index page in your Firefox history." Could I have inadvertently uninstalled a critical program? What next? I just recently reinstalled RealPlayer, should I do it again? Or should I install Windows Explorer?

Modified by Bernie241

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Hi Bernie241, I just assumed the list of MP3s was opening in Firefox, so there would be some history on that.

What if you type D:\ in the Firefox address bar and press Enter. Does anything look as though it should be clickable there?

(Windows Explorer is the program you use to view files and folders; it's the program that opens when you click My Computer. You don't have to reinstall it.)

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Jscher2000, This time when I closed all windows and clicked on My Computer and then the DVD RW disk it ejected the disk and asked for it back. When I inserted the disk again, it gave me the list of lessons and worked. Again, I say thank you, but, is it possible to make it work without closing every window? This time it worked, I wonder why when I first tried to open the DVD RW disk it reported "application not found." Just now I reinserted the disk and nothing happened because I had two windows open. Must I always start from the desktop? As I mentioned previously, my wife and I have watched hundreds of lessons normally. Why is it so restrictive now?

Modified by Bernie241

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I don't have a good sense of what is going on with your system at all.

Also, I didn't mean that you should close the windows, just minimize them all to the task bar so you can see any new window specific to the disc after you insert it. There is a button at the far right end of the task bar just past the time and date which should say Show desktop when you hover your mouse over it. That allows you to minimize all the windows with one click.

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Jscher2000: Now it does not work at all. The first time I tried it, again I thought my troubles are over and I can get used to that specific procedure. The next time I tried it, I waited for five minutes and the bar of progress never made it to the end, it was still pulsing and the green was getting longer, but it never opened the disk. At one point, I went for PC Booster and when they got on line, they said a technician would clean up my computer for the price of $281.00 one time. They recommended working this process every three months. NO WAY! It would be cheaper to buy a new PC every year. This is most frustrating. What now???

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Could you check with the service that provides the DVDs? Maybe this is a new problem with the recent Windows updates that they have a solution for. I just don't have enough information to know what's going on with the disc.