No sound on Youtube with FF 16, 17 and Flash Player 10 and upwards

This problem started about a month ago and I only just got around to trying to fix it.
Symptom: No sound on some but not all videos on Youtube.
Firefox 16 and Firefox 17
Tried with Flashplayer 11.5, 11.4, 11.2, 10.4.
It happens in safe mode.
It happens even when all Add-ons are disabled.
It does not happen in Chrome.
I'd be very grateful for suggestions on how to troubleshoot this. I've already googled extensively and none of the suggestions I found helped.

A reset does restore your information, but if you want to backup anyway, read [[Back up and restore information in Firefox profiles]]

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HT2506 After updating my system to Mountain Lion 10.8.2 I can no longer view videos on Facebook or other sites. The only one I can view videos on is youtube. I have downloaded Adobe Flash player and still no luck. I cannot even open Preview on my computer

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Merely clicking the Preview icon in the Dock doesn't cause it to open anything, unless you had one or more windows open the last time it quit.
If you're sure you've installed the latest version of Flash, take each of the following steps that you haven't already tried. After each step, relaunch Safari and test.
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/Library/Internet Plug-Ins Right-click or control-click the highlighted text and select
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Adobe - Install Adobe Flash Player
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I can't see any video website like youtube, vimeo, even facebook. My flash player is installed and it's work because I still can see the video in IE, only on Firefox it only audio work, the video is all blank(black), anyone can help me?

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when I restart my PC again the video can work just first video, then when I see another website video it all black...... (but sound still work)
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Try to disable the hardware acceleration in the Flash Player.
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* https://support.mozilla.org/kb/Cannot+view+full+screen+Flash+videos
* http://www.youtube.com/swf_test.html (right-click the player: Settings)
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* http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html
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*Don't make any changes on the Safe mode start window.
*https://support.mozilla.org/kb/Safe+Mode
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Hello world !
I've have a curious problem with Youtube.
When i go on youtube with my bluetooth headset on my head, the sound of the videos is not in my headset but in the speakers of my PC
But i have no problem with other sites like Jamendo for example. Have you got an idea ? xD (Oh and my web Browser is Firefox )
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Hi there!.
I'm just curious: Have you tried the minitube client (you can install it through the official repos). See if you get output there when trying to see a video.
That is the best bet I think you have in terms of the software you use to see flash content. You could also try the google-chrome package of the AUR and check how does that browser react to the BT headset (there are differences between the flash plugin of Firefox and Google's).
I hope this helps you in some way while someone smarter than me sorts out your issue.
Best of Luck

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Message Edited by Blah-and-Feh on 04-5-2006 :50 PM

Hay everyone thanks for the advise but i was finally told by one of the support personnel that I actually need the dri've bay insert that comes with the fidelity in order to get the cmss 3d to work with the headphones.
I only purchased the extreme gamer not the extreme gamer fidelity and that is why i cant get the cmss 3d to work but it still advertises on the box that you can use the cmss 3d and get that feature. :angry:? Should have done homework but i was out Christmas shopping and i went off of what the box advertised. This is very unusual for me to shop compulsi'vely. The funny thing is that everything else on the box that is advertised such as the increase of the CPU and the EAX HD features are able to be used. Im very upset about this because I particularly bought this card for the cmss 3d. I really don't know if i will ever recommend another Creative Product to any of the people i do computer repair or gamer builds for, unless this gets resolved and the only way to resolve this is to get the cmss 3D to work. By the way I did do a full reinstall even with clean boot so that isn't the problem. I'm really upset and ready to return this product to Best Buy unless this can be resolved. Any admin that comes across this please send me any ways of getting a hold of anyone that can help. Tks and hope yall had a wonderful Thanksgiving.
Creatively toastedMessage Edited by toast on -24-200608:48 PM

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XXX.XXX.XXX.XXX
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