Fantastic, highly customized tiny addon! Puntuado con 5 de 5 estrellas

Thank you!
Is it possible to add to it input field where user can type the search pattern?

Esta valoración es de una versión anterior del complemento (0.3.120730). 

I'm not quite sure what you mean by 'search pattern'. But maybe you should have a look at the 'fastest search' addon (https://addons.mozilla.org/en-us/firefox/addon/fastest-search/)