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Why can't I play Facebook video?

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  • 2 have this problem
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  • Last reply by niniiinggg

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I have already updated the Firefox and Adobe Flashplayer but still unable to play the videos in Facebook. In my Firefox plugins list, I found Unity player but it couldn't be updated (see picture). Could anybody help me?

I have already updated the Firefox and Adobe Flashplayer but still unable to play the videos in Facebook. In my Firefox plugins list, I found Unity player but it couldn't be updated (see picture). Could anybody help me?
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Does the video placeholder show an error message? If so, what is the message?

Could you tell me what boxes you have blue and red on YouTube's HTML5 diagnostic page:

https://www.youtube.com/html5

Normally, on Windows 10, they would all be blue except the last one.

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Yes, it shows error message; "Something went wrong. Sorry we're having trouble playing this video." Among the six boxes, the last box i.e. MSE & WebM VP9 is in red. I am using Windows 10. Do you have any idea why I'm still unable to play videos in Facebook?