macOS Sierra freeze on iMac late 2009 using Safari

Same problem here on a late 2009 iMac 21.5", with stock ATI graphics card.

I did a clean install of Sierra to rule out problems with settings carried over from previous versions.

No I have NVIDIA GeForce GT 650M and intel graphics hd 4000

Hi guys,

I have the same problem with iMac 2010,

I thought this issue has been related to upgrading hard disk from HDD to SSD as there are also discussions on web looking for a solution in this way.

Have you maybe changed HDD to SSD,

Cheers

Having removed one Safari plug in (Add to Pocket) and also changed my browser to Chrome I have not had a single crash. Worth trying a different browser although by the sound of it, from the experience of others, other factors maybe relevant or crucial.

Julian

I'm having exactly the same issue on a late 2009 27" iMac. Reset PRAM, checked HD, ran Etrecheck, reset SMC, etc. Still having the problem

I also have this issue on a Late 2009 iMac. I posted 8 hours ago, but didn't get any replies. You got 18! Nobody loves me...

Also getting an issue I have seen reported in this forum re incomplete shutdown, just a black screen, no desktop items, but Dock still auto-unhiding with mouse, but still non-responsive.

I did a Safe Boot eight hours ago (apparently this does some checks & things), then went into Disk Utility for First Aid on the drive. Said it couldn't be completed because of errors, so I should do it in Recovery. Did that, re-booted normally, and I haven't had any issues all day, and my iMac shut down nicely this evening.

I'm not saying it's sorted, but its looking good so far.

gimbers

I had the same problem, iMac late 2009 27", Safari kept freezing (Safari 10 and Safari Technology Preview - same webkit) all the time, only hard reboot helped.

The solution: disable ALL extensions in preferences.

It seems many extensions haven't been updated fully to work with Safari 10.x hence causing these freezes.

Try adding back extensions one at a time (if you really need it) to investigate the bad apples (oh the pun).

Folks, I have a Macbook Pro Retina with 8GB RAM (late 2012) and a regular Intel HD4000.

After an upgrade to MacOS Sierra I experience terrible slowness with Safari, especially when working with G Suite apps (gmail, calendar, docs, spread sheets, etc): activity monitor shows Safari (itself) consumes over 1GB memory and each Google-app tab eats ~1.5-3GB of memory. Therefore my laptop is always in swap (over 3GB used)...

I don't know what/who to blame: either Sierra, or Safari 10, but it's not a good situation, when you upgrade to get better performance (as said by Apple), but you get dramatic "freezes" and non-responsive interface (as told in the top of the conversation).

Please advise what to check/change/etc to get at least performance of El Captain...

Thanks in advance.

I don't have any extensions installed in Safari, so this wasn't the issue for me.

I have the exact same problem with the same iMac 2009. It is very frustrating for me. I will install back 10.11 and see if that helps. So far ive tried many things to solve it but no luck such as disable webGL, clear history, clear cache etc. I'll keep you posted about the results with el capitan.

Fixing the disk errors with disk utility should help you out to some extent. I've disabled Safari extensions so we shall see.

i can say that after having disabled extensions completely the freezing never occured again, Safari flies as it should.

Go to preferences and disable extensions (and if it's still freezing, disable plug-ins as well).

...bummer...

Safari freezing came back after two days of usage with no extensions enabled.

It must be a system problem, not third-party, it seems.