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I am having problems viewing videos in firefox. it can play sound but the picture just seems to be black. I have uninstalled Flash and then reinstalled. It works for about 10 minutes then the picture goes again. I have done a few virus scans to check if there was any malicious software installed which came back clean. any ideas?

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Is the screen saving kicking in? i.e. does the whole screen go black or just the video? – ChrisF Mar 16 '11 at 9:20
just the Video goes black the screen is still on and working. thing that makes it odd is bbc iplayer work properly but youtube doesnt – ben950 Mar 16 '11 at 9:25
Are you using two screens? – socken23 Mar 16 '11 at 12:02
no not using 2 screens – ben950 Mar 16 '11 at 12:14
What operating system are you using? iPod Touch or Linux? I figure its gotta be one of these two. – kmarsh Mar 16 '11 at 12:16
up vote 1 down vote accepted

You don't specify it in your question, but if you are using Firefox 4 Beta/RC then you might be the one of many victims of a common Firefox 4 bug, see bug tracking on

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Thanks that seems to be the problem is there any fix out or just got to wait for mozilla to pull there finger out – ben950 Mar 17 '11 at 13:44
You could try changing http to https, that fixes the problem for many users. Other than that you'll have to wait for a proper fix from Mozilla... – benregn Mar 21 '11 at 19:39

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