I am using Firefox 184.108.40.20648, with Flash 11.3.300.262 installed. My OS is Windows XP. Just
noticed the issue within the past day or so.
Youtube video links play, but not embedded video.
Do you have 3rd-party content allowed at http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.htm l ?
Also, what is your display adapter, device driver version & date? See http://forums.adobe.com/thread/945765
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