@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

/* By streetwolf - 09/19/2010 */

/* Only for Fx 4.0b7pre+ */

.urlbar-textbox-container[overlinkstate],
   .urlbar-over-link-layer[overlinkstate],
    .urlbar-textbox-container-children[overlinkstate],
     .urlbar-over-link-box[overlinkstate]{
      -moz-transition-delay:500ms!important;}  /* Change delay to any value you'd like. 1000ms = 1 second */