Hi philip20,

Thanks for joining the thread. QuickBooks Online Payroll is an add-on service and is powered by Employment Hero (our payroll provider) which is why you need to uncheck Prevent cross-site tracking on your browser settings. 

Here's how to enable third party cookies in Safari:

1. Go to the Safari menu, then select Preferences.
2. Click Privacy, and ensure Prevent cross-site tracking and the Block all cookies option is not selected.

On the other hand, you can also use different browser like Google Chrome or Firefox to access your Employees tab. 

Feel free to drop a comment below if you need further assistance, we're here to help.