title: Use dolphin (or other browser) like yakuake
body: <p>I often want to open a file browser to open a file and then close the browser.</p>
  
  <p>Is there a way (a plasmoid, a dolphin plugin, another browser...) which could allow me to have a file browser "in the style of" yakuake? (i.e. unfolding with a shortcut, and re-folding when I chose the file I want)</p>