Enter "about:config" (minus the quotation marks) into the url bar and press enter. Type "flock.favorites.showKeyword" (minus the quotation marks) into the "Filter" bar at the top of this window. Change the value to true.
Warning: the Flock configuration window contains numerous settings which, if incorrectly changed, may render Flock inoperable. Please follow these instructions exactly as indicated to avoid this risk.
