Can't delete urls from awesomebar results list Rated 4 out of 5 stars

With the addon enabled i can no longer delete urls from the awesomebar results drop down list.For example you type mozilla and you get results for mozilla,then point a result with your mouse and hit DEL to delete that url from history.With the addon enabled this no longer works.It deletes the selected autocompleted word or does nothing when the word typed is not selected at all.