You login to your WordPress site and want to open a second browser window or tab open so you can view the front end of your site while working in the back-end. This is very handy because while you make changes to your content you can just refresh the other window with out opening your site over top the window you are working in.
Here is a really cool tip to open the front end of your site in another browser window or tab directly from your dashboard.
In Mac Cmd + Click
(Command key) – On some Apple keyboards, this key also has an Apple logo ()
In Windows Ctrl + Click
The Control key is right below Shift on most keyboards.
If you click your site title alone, your site will open over top in the same window or tab. But if you depress the Cmd (Mac) or Ctrl (Windows) key on your keyboard while clicking your mouse on the title of your site it will open in a new window or tab.