Along with a keyboard shortcut to jump to the Search Tabs box, as suggested by others already, it would be great if tabs could also be closed directly from the tab search results.
So on the right side of each line of the tab search results, there should be an 'x' which can be clicked to close that tab without having to switch to it first.
This would be a godsend for those of us who end up with gazzilions of tabs.