Safari not responding on iMac after turning on

After turning on my iMac each morning I click on Safari but the program does not load, I see "Safari not responding" when I click option, command, escape and must force quit. This occurs several times 3,4 and then I am able to get Safari to load.

Every night I empty the cache and every week or so I clear the history. I have done the Safari updates and have updated to Sequoia recently and this problem continues.


Any advice?

iMac 21.5″, macOS 15.7

Posted on Jan 28, 2026 5:25 PM

Reply
Question marked as Top-ranking reply

Posted on Jan 29, 2026 7:17 PM

Sunnyside wrote:

Thank you for your attention.
[...]
When I logged in to the computer as another user (which is rarely used) Safari loaded quickly.

Any additional thoughts?

You're welcome.


The fact that Safari launches immediately under another user indicates that there is likely some software conflict going on in your regular account.


Start by making sure your macOS Sequoia is updated to 15.7.3, (update, not upgrade) the current release. If you are not running that version you may have missed a bug fix along the way. Update macOS on Mac - Apple Support


Also make sure that you have downloaded the latest update for the Safari app. You should be running version 26.2 .


If both of those versions match what is running on your Mac, then I'll ask you to please run an EtreCheck evaluation of your Mac and post the generated report back here in a reply. EtreCheck is a safe and highly regarded utility from a trusted developer and respected ASC contributor. The report EtreCheck generates will not include any personal info. It simply gathers specifics about hardware performance and installed software that might be in conflict with the OS and eliminates us having to play '20 questions' to get to the heart of some things.


Please navigate to EtreCheck.com to download the utility. Be sure to Allow Full Disk Access when you install the app. Once you’ve run the app and created your report please post it with your reply to this message. 


Please note you must upload the full report. To see how, please clickHow to use Add Text when posting… EtreCheck Report.


We’ll use your EtreCheck report to look for the things that may be causing your problem and advise how to correct them.


3 replies
Question marked as Top-ranking reply

Jan 29, 2026 7:17 PM in response to Sunnyside

Sunnyside wrote:

Thank you for your attention.
[...]
When I logged in to the computer as another user (which is rarely used) Safari loaded quickly.

Any additional thoughts?

You're welcome.


The fact that Safari launches immediately under another user indicates that there is likely some software conflict going on in your regular account.


Start by making sure your macOS Sequoia is updated to 15.7.3, (update, not upgrade) the current release. If you are not running that version you may have missed a bug fix along the way. Update macOS on Mac - Apple Support


Also make sure that you have downloaded the latest update for the Safari app. You should be running version 26.2 .


If both of those versions match what is running on your Mac, then I'll ask you to please run an EtreCheck evaluation of your Mac and post the generated report back here in a reply. EtreCheck is a safe and highly regarded utility from a trusted developer and respected ASC contributor. The report EtreCheck generates will not include any personal info. It simply gathers specifics about hardware performance and installed software that might be in conflict with the OS and eliminates us having to play '20 questions' to get to the heart of some things.


Please navigate to EtreCheck.com to download the utility. Be sure to Allow Full Disk Access when you install the app. Once you’ve run the app and created your report please post it with your reply to this message. 


Please note you must upload the full report. To see how, please clickHow to use Add Text when posting… EtreCheck Report.


We’ll use your EtreCheck report to look for the things that may be causing your problem and advise how to correct them.


Jan 28, 2026 6:26 PM in response to Sunnyside

If a simple reboot of your Mac doesn’t fix things, see if the problem still happens in safe mode.  Safe mode will often correct weird software behavior by forcing the OS to clear caches, do disk repair and other self-maintenance and housekeeping and temporarily disables third-party mods.

How to use safe mode on your Mac - Apple Support 


Does the problem go away in Safe mode? 

You can exit safe mode by restarting your Mac normally, then reevaluate the problem.


Do you have any anti-virus, cleaning, optimizing, security or VPN apps installed?

Jan 29, 2026 6:55 PM in response to D.I. Johnson

Thank you for your attention.


The problem occurs in safe mode, did disk repair "first aid". Exited safe mode, did disk repair again. The problem persists. Every time the computer starts or restarts, when I click on Safari it does not load - "Safari not responding" until the 5th or 6th attempt.


There are no login items at start up, no anti-virus, cleaning, optimizing, security or VNP apps installed.


When I logged in to the computer as another user (which is rarely used) Safari loaded quickly.


Any additional thoughts?

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Safari not responding on iMac after turning on

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