Since upgrading to Mavericks and Safari 7.0, YouTube videos will only play for a few seconds before stopping. There is no audio, and if I click play nothing will happen, however by scrubbing forward or backwards it will continue to play for a few more seconds before stopping again. I have emptied my cookies to no avail.
MacBook Pro (Retina, 15-inch, Early 2013), OS X Mavericks (10.9)
Open System Preferences > Flash Player then select the Advanced tab.
Click Delete All under Browsing Data and Settings
Not empty the Safari cache.
From your Safari menu bar click Safari > Preferences then select the Advanced tab.
Select: Show Develop menu in menu bar
Now click Develop from the menu bar. From the drop down menu click Empty Caches.
Now try a video.
I appreciate the help, unfortunately it didn't seem to solve the issue. The video I tried played for 11 seconds without audio before stopping once more.
Has anyone solved this yet? I've got the same problem.
It turns out for me at least that it had gotten caught thinking my headphones were plugged in. To fix the issue, I plugged in my headphones, took them out again and it has been working fine since. Good luck!
I picked up the following from another thread - and it worked for me.
Safari Preferences > Extensions> set on/off button to off>quit Safari>re-open Safari. From mute You Tube videos to full sound in 5 moves after months of trying other things. (Sound still working when on/off button put back to on.)
Safari 7.0 won't play YouTube videos correctly.
