I am a great fan of the "Search for open tabs" feature and its convenient "CTRL + SPACE" shortcut. This option would IMHO be even greater if it displayed on each line a "Close" button (beside the icon on the right to switch to this tab), or alternatively a selection box with a "Close" button at the bottom of the dialog, which would close all the selected tabs (those boxes would be selected by default). I think this would be much more useful than for instance the "Close tabs to the right" option found on clicking on a tab’s header.