Deleting Contacts: Where exactly on the menu bar is the delete function? I can’t see it!

Several posts here refer to the Delete function appearing on the top menu bar when you select a contact or group of contacts. You then press delete and it brings up a confirmation box where you press delete again. But that doesn't appear on my browser (Internet Explorer 9). The closest I get is the 'Manage' drop down menu, which includes a function to restore deleted contacts, but not to delete existing contacts. Am I looking in the wrong place? Does my browser need to be reconfigured? Any advice?