Open Chrome
Click the three-dot menu
Select Settings
Click Privacy and security
Click Site Settings
Click Notifications
Turn off Sites can ask to send notifications
Remove or block any sites under Allowed to send notifications
On Android, open Chrome
Tap the three-dot menu
Tap Settings
Tap Site settings
Tap Notifications
Turn off notifications or block specific sites
On iPhone or iPad, open Settings
Tap Notifications
Tap Chrome
Turn off Allow Notifications
In Windows, open Settings
Click System
Click Notifications
Turn off notifications for Chrome
In Mac, open System Settings
Click Notifications
Select Chrome
Turn off Allow Notifications