--- a/browser/base/content/highlighter.css
+++ b/browser/base/content/highlighter.css
@@ -37,16 +37,19 @@
 }
 
 /*
  * Node Infobar
  */
 
 #highlighter-nodeinfobar-container {
   position: absolute;
+}
+
+#highlighter-nodeinfobar-container:not([locked]) {
   -moz-transition-property: top, left;
   -moz-transition-duration: 0.1s;
   -moz-transition-timing-function: linear;
 }
 
 #highlighter-nodeinfobar {
   display: block;
   white-space: nowrap;

--- a/browser/devtools/highlighter/inspector.jsm
+++ b/browser/devtools/highlighter/inspector.jsm
@@ -1025,16 +1025,17 @@ InspectorUI.prototype = {
     if (this.treePanel && this.treePanel.editingContext)
       this.treePanel.closeEditor();
 
     this.inspectToolbutton.checked = true;
     this.attachPageListeners();
     this.inspecting = true;
     this.toolsDim(true);
     this.highlighter.veilContainer.removeAttribute("locked");
+    this.highlighter.nodeInfo.container.removeAttribute("locked");
   },
 
   /**
    * Stop inspecting webpage, detach page listeners, disable highlighter
    * event listeners.
    * @param aPreventScroll
    *        Prevent scroll in the HTML tree?
    */
@@ -1049,16 +1050,17 @@ InspectorUI.prototype = {
     this.inspecting = false;
     this.toolsDim(false);
     if (this.highlighter.node) {
       this.select(this.highlighter.node, true, true, !aPreventScroll);
     } else {
       this.select(null, true, true);
     }
     this.highlighter.veilContainer.setAttribute("locked", true);
+    this.highlighter.nodeInfo.container.setAttribute("locked", true);
   },
 
   /**
    * Select an object in the tree view.
    * @param aNode
    *        node to inspect
    * @param forceUpdate
    *        force an update?