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Firefox do not play sound in any HTML5 player.

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New Contributor

Firefox do not play sound in any HTML5 player.

When trying to play any sample from any album sold in Bandcamp.com the player starts playing, but there is no sound. Meanwhile other browsers plays it fine.

I use latest FF, I tried disabling various addons and plugins but it didn't help (they are not sound related anyway).

I run on Win8x64.

Update: The sound plays fine everywhere else on Firefox. YouTube etc. It plays everywhere except Bandcamp.

And the Bandcamp player is not Flash, it has nothing Flash related. It is HTML5 player.

1 ACCEPTED SOLUTION

Accepted Solutions
New Contributor

Re: Firefox do not play sound in any HTML5 player.

SOLVED

Finally, after hundreds of hours I fixed it and Firefox plays sound in HTML5 in everywhere, YouTube (HTML5 mode), SoundCloud, Bandcamp and etc.

You have to: Right-click on your sound/speakers icon in the system tray and select Playback Devices, go to Speakers properties (the one which is green-ticked, also disable the red ones, if any), then go to Enhancements and tick Disable all sound effects. And that's it, restart the browser and enjoy.

In short: Volume mixer -> Playback devices -> Playback tab -> Speakers properties -> Enhancements -> Disable all sound effects -> Restart browser.

I use latest stable Firefox 23.0.1 on Windows 8 x64 (but Firefox is 32-bit).

Also, if didn't help, make sure you have media.windows-media-foundation.enabled set to 'true' in about:config.

You should also have some decent codecs installed in your machine, I have VLC Player and it comes with lots of in-built codecs. Also make sure you have VLC Web Plugin enabled in Add-ons -> Extensions (Always activate)

So the unanswered is who's problem is that? Is it Firefox? Or Windows 8? Or my Realtek audio drivers fault? (Anyway without disabling sound effects, HTML5 works fine in any other browser, so I blame Firefox for this nonsense for extra configurations in Windows audio settings)

So, pretty much it.

Cheers, rhazor

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21 REPLIES
Legendary Contributor

Re: Firefox do not play sound in any HTML5 player.

Site Moderator

Re: Firefox do not play sound in any HTML5 player.

If you use extensions (Firefox/Tools > Add-ons > Extensions) that can block content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then make sure that such extensions aren't blocking content.

You can remove all data stored in Firefox from a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History > Show All History" or "View > Sidebar > History") or via the aboutSmiley Tongueermissions page.

Using "Forget About This Site" will remove all data stored in Firefox from that domain like bookmarks, cookies, passwords, cache, history, and exceptions, so be cautious and if you have a password or other data from that domain that you do not want to lose then make a note of those passwords and bookmarks.

You can't recover from this 'forget' unless you have a backup of the involved files.

It doesn't have any lasting effect, so if you revisit such a 'forgotten' website then data from that website will be saved once again.


You can check for problems with current Flash plugin versions and try these:

  • disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
  • disable hardware acceleration in the Flash plugin

You can try clear the Flash local storage and settings.

  • Windows Control Panel > Flash Player > Storage: Local Storage Settings
    • Remove a specific domain: Local Storage Settings by site
    • Remove all domains: Delete All and Delete Data

Flash Website Storage Settings panel:

Global Storage Settings Panel:

New Contributor

Re: Firefox do not play sound in any HTML5 player.

Update: The sound plays fine everywhere else on Firefox. YouTube etc. It plays everywhere except Bandcamp.

And the Bandcamp player is not Flash, it has nothing Flash related. It is HTML5 player.

Site Moderator

Re: Firefox do not play sound in any HTML5 player.

I'm seeing a hidden Flash player on bandcamp.com playing the sound and disabling Flash makes the sound stop for me.
There are only audio tags in the page code, but they are empty (i.e. no source specified).

<embed id="proxy_swfobject_1" width="0" height="0" flashvars="proxyid=1&namespace=FlashProxy" style="z-index: 9999;" allowscriptaccess="always" quality="high" bgcolor="#F0F0F0" name="proxy_swfobject_1" src="http://bandcamp.com/js/shared/nugget2.swf" type="application/x-shockwave-flash"></embed>
New Contributor

Re: Firefox do not play sound in any HTML5 player.

So what does it mean? My flash is enabled everywhere. Is it somehow disabled on that site? How to enable that then?

New Contributor

Re: Firefox do not play sound in any HTML5 player.

Okay. I think I found out that there is no audio on Firefox on any HTML5 player. I tried the one at home page of http://mediaelementjs.com/ it shows it is playing but there is no audio (there is video though). And below video player there is an audio player too - no sound.

I cleared all caches and settings and disabled all addons and extensions and updated to all latest flashes and everything.

Site Moderator

Re: Firefox do not play sound in any HTML5 player.

You can click the Volume icon on the Windows Taskbar near the clock and click the Mixer link at the bottom to open the mixer.
You can adjust the volume level for each application in that window, so make sure that Firefox is not muted or set at a low level.
Current Firefox versions use the plugin-container process to run plugins, so you need to check the volume setting for the plugin-container process.
You will only see the Firefox program or the Plugin Container in the Mixer if you are on a website that plays sound.

See also:

New Contributor

Re: Firefox do not play sound in any HTML5 player.

All mixer volume levels are set to max, I did that already and I mentioned that there is sound on YouTube or any other Flash player. There is no sound on HTML5 players.

Site Moderator

Re: Firefox do not play sound in any HTML5 player.

Does the video player on this page show controls?

You can check via the right-click context menu if show controls is enabled.