Mac OS27 problems - Safari & Mail

Since update to MacOS27 Golden Gate in iMac :

1) Safari slow to load initially, then gets back to 'normal' speed

2) Mail has lots of blue squares / question marks.

All worked fine before.

I have restarted router and broadband, and tried adjusting privacy controls, to ne avail.

Anyone else have these problems?


IMac 24 with M1, 16 GB / 2 TB

iMac 24″, macOS 27.0

Posted on Oct 2, 2026 7:06 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 2, 2026 11:37 AM

Give this a try: boot into Safe Mode according to How to use safe mode on your Mac and test to see if the problem persists. Reboot normally and test again.


NOTE 1: Safe Mode boot can take up to 3 - 5 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


NOTE 2: if you have a wireless keyboard with rechargeable batteries connect it with its charging cable before booting into Safe Mode. This makes it act as a wired keyboard as will insure a successful boot into Safe Mode.


2 replies
Question marked as Top-ranking reply

Oct 2, 2026 11:37 AM in response to georgefromsouthampton

Give this a try: boot into Safe Mode according to How to use safe mode on your Mac and test to see if the problem persists. Reboot normally and test again.


NOTE 1: Safe Mode boot can take up to 3 - 5 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


NOTE 2: if you have a wireless keyboard with rechargeable batteries connect it with its charging cable before booting into Safe Mode. This makes it act as a wired keyboard as will insure a successful boot into Safe Mode.


Mac OS27 problems - Safari & Mail

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