While using Span wall software, users are able to access applications on their desktop and use these applications while Span is active. This includes browsers and web applications. To trigger this feature, select the Applications icon on the menu. It will reveal the desktop task bar. Select the application, including a browser, to be launched.
Once the application, including your browser, is launched, you can work within it and if required capture screenshots via the capture toolbar to import into your Span canvas.
Click the Applications icon to return to full screen mode in Span wall. This will remove the capture toolbar and the desktop toolbar.
For more information you should also read Using the screenshot function on the wall
Source: Nureva Span