Originally, like the old Firefox search bar, this addon let you reach the front page of your main search engine by just clicking in the search bar and pressing Enter to search while no text was typed in, and let you reach the front page of any other search engine by clicking on that search engine's icon while no text was typed in. Recently, those options have stopped working. Trying to search with no text typed in now simply does nothing, instead of taking you to the search engine's front page.