It may be desirable to have (Zimbra) create new windows such as when you wish to view both an email and a calendar.

Safari may block pop up windows which prevents the opening of a new window.

To allow pop ups go to the Safari Menu -> Preferences -> Websites tab.

Then in the left column labelled General -> Scroll down to Pop-up Windows.

Change to -> Allow.


In Chrome you can do the following:

Chrome menu -> Preferences. Search for ‘Pop-ups’.

From sites search for

Open the disclousre triangle for

For ‘Pop-ups and redirects’ use the pull down menu and choose allow.