A list of references (or a blank list if you are using Mendeley for the first time)
With a menu on the left: click on All Documents. If you click on a title in the list, the metadata for the record will appear on the right. You can add or edit things here if you wish.
If you have created Groups, they will appear here
The following tab shows how you can add references to your library.
In Mendeley Desktop version you can add a new reference via:
Go to File/Add Entry Manually
The screen "New Document" appears
Choose for example Type: Journal article and enter the following data:
Andre Geim, The fun way to win a Nobel prize, New Scientist, 2010, Volume 208(2787) 32-33
Click on Save
You can import references in your webbrowser Mozilla Firefox to Mendeley via: