Vimium: How do I save a page to bookmarks?

[vt8235]

Looked through the list of shortcuts and found nothing. In surfingkeys there is something like "ab" (add bookmark). In vimperator there is "a".
What is it in vimium? Is there? Ctrl-D found recently is not working.
How can I use the extension when I cannot save pages to favourites?

[dhawangayash]

You could always rely on Chrome's shortcut key for this "cmd + b"

[Khalian]

Cmd d.