The breadcrumbs help you to navigate between apps and pages without having to use the back button or open another browser tab.

The navigation tabs are organized hierarchically, with apps on the left, and pages on the right. This means you can always see the path to the page you have open.
Click the breadcrumb containing the name of the current page to see the full list of categories and pages within the current app. Choose a category and page to navigate to it.
Click the breadcrumb containing the name of the current app to see the full list of apps. Choose an app to navigate to it.