Open fire Bookmark

http://developer.mozilla.org/en/docs/Places:Bookmarks_Service

Initiating the Bookmarks Service

var bmsvc = Components.classes["@mozilla.org/browser/nav-bookmarks-service;1"]

                     .getService(Components.interfaces.nsINavBookmarksService);

Corresponding function inserts a child bookmark into the given folder. If this item already exists in the given folder, it will be moved to the new position.

long long insertBookmark (in long long aParentFolder, //aParentFolder = the id of the parent folder
                         in nsIURI aURI,             //aURI = the URI to insert
                         in long aIndex,             //aIndex = the index to insert at, or -1 to append
                         in AString aTitle           //aTitle = the title of the new bookmark
                        )

Returns:

 The ID of the newly-created bookmark