Since upgrading to Firefox 23.0.1, I noticed I was having intermittent issues with no audio in Youtube videos. I have since discovered that, if I go to youtube to watch a video, there is no audio. The weird thing about this, though, if the video is linked through a forum, and I watch it embedded through that forum, it works fine.
Other video sites (test site linked in the FAQ and the videos on mozilla.org) work fine. If I open the youtube video in IE, it works fine.
I've tried searching these forums and the internet in general, but I'm not seeing anything similar.
Solved! Go to Solution.
Issue appears to be specific to flash. When I set my defaults to HTML5, any video that launches via HTML 5 works fine in Firefox. It's only when the video tries to launch via Flash that I had problems.
I went through and uninstalled the flash plug-in and removed flash from the PC, then did a clean reinstall. Whatever the problem was went away with a new install of flash.
Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
(If you're not using it, switch to the Default theme.)
Once you get the pop-up, just select "'Start in Safe Mode"
If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one. Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article for that.
To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.
When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.
Started Firefox in safe mode, no sound on any of the youtube videos I selected. Just to make sure, I copy/pasted one of the links to IE and I had perfect audio.
Did you check the volume setting in the player?
Try to delete the webappsstore.sqlite file to remove all local storage.
Otherwise local storage can only be cleared if you use Clear Recent History (Ctrl+Shift+Delete) to remove all cookies (i.e. time range is everything)
You can check if DOM Storage is enabled.
>> Did you check the volume setting in the player?
Yes, it's set at full volume. I can hear a static sound based on how high the volume is set, but no actual audio.
>>Try to delete the webappsstore.sqlite file to remove all local storage. Otherwise local storage can only be cleared if you use Clear Recent History (Ctrl+Shift+Delete) to remove all cookies (i.e. time range is everything)
Restarted firefox, hit ctrl+shift+delete, made sure ALL of the check boxes were marked and the time frame was set to Everything. Didn't resolve the issue.
>> You can check if DOM Storage is enabled.
Dom.storage.enabled is set to true. Set it to false, re-ran the above steps to clear all cache/cookies/storage, then tried again. Still not able to hear anything on youtube. Reset dom.storage.enabled back to true.
Does anyone have a fix for this yet? I am running Firefox 24.0 . Have tried all above . Running latest flash and all other addons up to date. I have windows sounds and things like iPlayer work fine - but youtube no sound.
I copied this from a thread on Adobe's forum:
sound not working on youtube
Ortho_Fan, Oct 4, 2013 10:04 AM in reply to chaleegeorge
I've see this identical issue posted on other help forums. Seems that YouTube, itself, is having some issues.
I just tried a video, and there was no sound. Then, I noticed that there was an "X" next to the speaker icon. I hovered the cursor over the speaker, clicked on the slider, and moved the slider all the way to the right, and BAM, normal volume again.
From what I can tell, YouTube has set Muted Volume as the default.
Dont know if it is the correct thread,but when i open my pc and then firefox the adobe flash player sounds in the mixer are muted everytime and i have to unmute it when i open firefox.Is there a fix about this?
Thanks in advance.