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white box showing up on videos following update

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  • Last reply by jeyson1099

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I have this box that shows up over the top of any video application on my firefox browser since my most recent update. It doesn't appear on other browsers. How can I remove it?

I have this box that shows up over the top of any video application on my firefox browser since my most recent update. It doesn't appear on other browsers. How can I remove it?
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Hello, Firefox has built in support for open media formats usually associated with MP3, WebM, Ogg and Wave containers. However, MP4 containers usually depend on platform decoders for AAC and H.264 audio and video streams. In order to find a solution to problems related to audio and video go to the following link Fix common audio and video issues