"The preview window -- or ClueViewer, as it is called -- stays
open as long as the mouse remains inside it. From the preview, you
can move to the previous or next link preview -- a feature that is
especially useful when reading a search results page, as Intercon
is quick to point out. You can also bookmark the link or open it in
a new tab, email the link or copy it to your desktop clipboard,
change Inteclue options, or report bugs. In addition, should you
have a sudden burst of gratitude or generosity, you can use the
preview window's icons make a donation to Interclue from the
preview window. More practically, you can right-click in the
preview to get the usual Firefox content menu that allows you to
save an image or a block of highlighted text. Using Interclue, you
might be able to research a topic and save notes without ever
leaving your starting page, especially if it is a list of search
results."