Why is Safari so slow after upgrading to macOS Sonoma?

This fix made me so happy! I'd been living with this problem for 6 months. It seemed to affect all Apple apps including Maps and iTunes as well.

Side note - the problem didn't occur when connected to wifi at work, only at home.

@blindkarma I think if that was the case then other prefs would get reset. Shift closes windows previously opened, so my guess is the bug is related to that behaviour. How? Not got a clue.

Regardless, it was a great find blindkarma that Apple support weren't aware of, so thanks for finding it and posting it.

With one "reset," Safari is still running weeks later as fast as it was before it slowed to a snail pace.

Yes! I totally agree with you. Why should the end user have to fiddle about? I've tried these tips and nothing works. I think everything these days is profit driven in overdrive. But what does one expect in a world with billionaires? Ugh.

Same issues here.

Wanted to add that gmails sometimes needs to be reloaded because the body of the message is blank.

Looks like one more flaw that Apple will never address.

I'm on a 2017 Intel iMac, but same issue. Safari has been solid until 17.0, and now it's slow to load, and slow to respond to sites. I tried Chrome, and it was faultless - worked fine.

Did anyone find a solution? I own a M1 Pro 14, and I'm having the same issue... takes an eternity to perform a simple google search

It seems my issue has resolved itself.

Other than resort it three or four times over two weeks, I did nothing.

Now it seems fine.

Go figure.

Didn't I write clearly that safe mode starts help temporarily but do not resolve the existing problem?

But thanks for your good intentions.

this worked INSTANTLY thank you so much!

Interesting!

Does this trick work with other apps?

settings? I don't see that option, only have general in my MacBook Pro M2

It's worked for me. But why? :)