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Firefox has no sound

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I can't hear anything. YouTube videos have no sound, even when i try to open mp3 file in firefox, it won't even play. My sound mixer is on max volume. I have reinstal firefox and even instal firefox developer edition and beta version, the same problem. For some reason i hear sond only on soundcloud :c On other sites there isn't even a speaker on the tab

I can't hear anything. YouTube videos have no sound, even when i try to open mp3 file in firefox, it won't even play. My sound mixer is on max volume. I have reinstal firefox and even instal firefox developer edition and beta version, the same problem. For some reason i hear sond only on soundcloud :c On other sites there isn't even a speaker on the tab
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額外的系統細節

已安裝的外掛程式

none, clean firefox

應用程式

  • User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0

更多資訊

JohannHan 8 個解決方法 129 個答案

Since when does it occur?

What is your OS?

Since when does it occur? What is your OS?
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