Poor YouTube performance in Safari on Mac

Good afternoon! The problem is in Safari, YouTube does not work correctly, in other browsers everything works fine, but in Safari everything works very poorly, it loads very poorly, the Internet is good and this problem is only with YouTube and Google search, everything else works fine



[Re-Titled by Moderator]

Original Title: сафарі yotube

MacBook Air 13″, macOS 15.6

Posted on Aug 29, 2025 12:17 PM

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Question marked as Top-ranking reply

Posted on Aug 30, 2025 9:27 AM

Are you running any anti-virus or so-called "cleaning" apps? Some can interfere with Apple's internal secutiry measurs and cause odd results. Some ad blockers and VPNs can as well.


Are any extensions installed in Safari? Do " Safari Settings: and click the "Extensions" tab:



Are any listed? A bad extension could give the results you see: certain sites don't work in Safari but others are fine.


If there are extensions installed, I would turn them all off and test. If those sites work with no extensions turn on, re-enable extensions one at a time until things go "boink" again. Then you know the bad extension is the last one re-enabled.

2 replies
Question marked as Top-ranking reply

Aug 30, 2025 9:27 AM in response to UALEGION

Are you running any anti-virus or so-called "cleaning" apps? Some can interfere with Apple's internal secutiry measurs and cause odd results. Some ad blockers and VPNs can as well.


Are any extensions installed in Safari? Do " Safari Settings: and click the "Extensions" tab:



Are any listed? A bad extension could give the results you see: certain sites don't work in Safari but others are fine.


If there are extensions installed, I would turn them all off and test. If those sites work with no extensions turn on, re-enable extensions one at a time until things go "boink" again. Then you know the bad extension is the last one re-enabled.

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Poor YouTube performance in Safari on Mac

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