Toggle theProduct and feature tipsswitch to theOffposition.
This disables notifications from the web app.
For macOS devices, selectPreferencesinstead ofOptions.
In the left pane, selectPrivacy & Security.
Scroll down to thePermissionssection.
Next toNotifications, selectSettings.
This feature is not available on the macOS version of Firefox.
Select theBlock new requests asking to allow notificationscheck box, then selectSave Changesto shut down the notifications.