Context Menu for Awesomebar Results

Back when the awesomebar came out, I instantly tried opening a context
menu for an individual result, to see what I could do to it.  Since
the awesomebar doesn't have a context menu, right clicking did
nothing.  This spawned at least two bugs:

https://bugzilla.mozilla.org/show_bug.cgi?id=482044 (Reso Duplicate of
next bug)
https://bugzilla.mozilla.org/show_bug.cgi?id=461830 (Reso Unconfirmed)

Furthermore, I notice that there are plans to add a 'delete' button to
the awesomebar results (https://bugzilla.mozilla.org/show_bug.cgi?
id=675818), amongst other changes, and that one of the issues is, is
that delete works differently on whether or not the result is a
bookmark or just in history.

I believe that a good solution would be to make it so that delete
tells the browser to remove it from history and history alone (unless
there is an odd case in which bookmarks have to have been visited to
be bookmarks) and that if one wants to remove the page as a bookmark,
they can open a context menu over the item and select "Remove
Bookmark".

Also, the other common elements "Open in New Tab", "Open in New
Window", "Open Here", ect. can also be included.  Context menus are
more discoverable (I only learned of the shortcut for deleting an item
off the list today), and don't take away from the other shortcuts or
visible elements.