Rated 5 out of 5 stars
Awesome! One of my favorite addons. Makes the search field actually usable. Much better UX than the default field. (click a search engine icon to select field for that engine; clears text and resets to icons after usage) Much preferred over Searchbar Autosizer.
New version 5.0a1 even supports Australis now. (though, please put in changelog text for your versions)