Restart your iMac, MacBook Air, Macbook Pro, or MacBook Pro with Retina Display. No audio in Safari, Firefox, and Chrome when playing videos after OS Sierra update.But speaker volume buttons on keyboard & Sound Output slider on System Preferences still works. Audio settings already set on internal speakers but no sound in Safari, but works on everything else.Mac users get popping noise when playing video or audio.The following are the examples of common Audio issues Mac users reported after upgrading to OS Sierra: Don’t worry the OS Sierra on sound feature is the new default setting, but it can be adjusted to have sound effects like on previous OS X versions. The OS Sierra audio not working is just one of the minor issues that Apple’s new OS X release has. The following will help you fix OS Sierra audio, volume and sound not working issues. Many Apple users have been complaining after upgrading to OS Sierra sound now working like no audio, audio control not working and audio noise.

Mac OS Sierra: How To Fix Sound Not Working Problemįor those that have recently updated to Mac OS Sierra, you may want to know how to fix the volume not working problem.

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