How to stop random alert notifications on iMac running macOS 26.1?

Yesterday, an alert notification started on my iMac using OS 26.1. How do I stop this random (occurring approximately every 20 seconds) alert notification. I've rebooted, disabled all application notifications in system settings but the alert continues.



[Re-Titled by Moderator]

Original Title: Stop constant alert notification

iMac 24″, macOS 26.1

Posted on Nov 21, 2025 10:22 AM

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Question marked as Top-ranking reply

Posted on Nov 21, 2025 10:24 AM

Go to Safari > Settings > Websites > Notifications, and remove all websites you have previously allowed to send you Notifications.

21 replies

How to stop random alert notifications on iMac running macOS 26.1?

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