--- a/browser/base/content/urlbarBindings.xml
+++ b/browser/base/content/urlbarBindings.xml
@@ -166,20 +166,16 @@ file, You can obtain one at http://mozil
 
         // Null out the one-offs' popup and textbox so that it cleans up its
         // internal state for both.  Most importantly, it removes the event
         // listeners that it added to both.
         this.popup.oneOffSearchButtons.popup = null;
         this.popup.oneOffSearchButtons.textbox = null;
       ]]></destructor>
 
-      <field name="DOMWindowUtils">
-        window.windowUtils;
-      </field>
-
       <field name="scheme" readonly="true">
         document.getAnonymousElementByAttribute(this, "anonid", "scheme");
       </field>
 
       <field name="goButton">
         document.getAnonymousElementByAttribute(this, "anonid", "urlbar-go-button");
       </field>
 
@@ -588,17 +584,17 @@ file, You can obtain one at http://mozil
           // the first strong directional character, we set the overflow
           // appropriately.
           this.selectionStart = this.selectionEnd = 0;
           window.requestAnimationFrame(() => {
             // Check for re-entrance. On focus change this formatting code is
             // invoked regardless, thus this should be enough.
             if (this._formattingInstance != instance)
               return;
-            let isDomainRTL = this.DOMWindowUtils.getDirectionFromText(domain);
+            let isDomainRTL = window.windowUtils.getDirectionFromText(domain);
             // In the future, for example in bug 525831, we may add a forceRTL
             // char just after the domain, and in such a case we should not
             // scroll to the left.
             if (isDomainRTL && value[preDomain.length + domain.length] != "\u200E") {
               this.inputField.scrollLeft = this.inputField.scrollLeftMax;
             }
           });
 
@@ -1886,20 +1882,16 @@ file, You can obtain one at http://mozil
 
     <implementation>
       <!--
         For performance reasons we want to limit the size of the text runs we
         build and show to the user.
       -->
       <field name="textRunsMaxLen">255</field>
 
-      <field name="DOMWindowUtils">
-        window.windowUtils;
-      </field>
-
       <field name="_maxResults">0</field>
 
       <field name="_bundle" readonly="true">
         Cc["@mozilla.org/intl/stringbundle;1"].
           getService(Ci.nsIStringBundleService).
           createBundle("chrome://browser/locale/places/places.properties");
       </field>
 
@@ -2092,58 +2084,58 @@ file, You can obtain one at http://mozil
           if (!this.style.direction) {
             this.style.direction =
               aElement.ownerGlobal.getComputedStyle(aElement).direction;
           }
           let popupDirection = this.style.direction;
 
           // Make the popup span the width of the window.  First, set its width.
           let documentRect =
-            this.DOMWindowUtils
+            window.windowUtils
                 .getBoundsWithoutFlushing(window.document.documentElement);
           let width = documentRect.right - documentRect.left;
           this.setAttribute("width", width);
 
           // Now make its starting margin negative so that its leading edge
           // aligns with the window border.
           let elementRect =
-            this.DOMWindowUtils.getBoundsWithoutFlushing(aElement);
+            window.windowUtils.getBoundsWithoutFlushing(aElement);
           if (popupDirection == "rtl") {
             let offset = elementRect.right - documentRect.right;
             this.style.marginRight = offset + "px";
           } else {
             let offset = documentRect.left - elementRect.left;
             this.style.marginLeft = offset + "px";
           }
 
           // Keep the popup items' site icons aligned with the urlbar's identity
           // icon if it's not too far from the edge of the window.  We define
           // "too far" as "more than 30% of the window's width AND more than
           // 250px".  Do this *before* adding any items because when the new
           // value of the margins are different from the previous value, over-
           // and underflow must be handled for each item already in the popup.
           let needsHandleOverUnderflow = false;
           let boundToCheck = popupDirection == "rtl" ? "right" : "left";
-          let inputRect = this.DOMWindowUtils.getBoundsWithoutFlushing(aInput);
+          let inputRect = window.windowUtils.getBoundsWithoutFlushing(aInput);
           let startOffset = Math.abs(inputRect[boundToCheck] - documentRect[boundToCheck]);
           let alignSiteIcons = startOffset / width <= 0.3 || startOffset <= 250;
           if (alignSiteIcons) {
             // Calculate the end margin if we have a start margin.
             let boundToCheckEnd = popupDirection == "rtl" ? "left" : "right";
             let endOffset = Math.abs(inputRect[boundToCheckEnd] -
                                      documentRect[boundToCheckEnd]);
             if (endOffset > startOffset * 2) {
               // Provide more space when aligning would result in an unbalanced
               // margin. This allows the location bar to be moved to the start
               // of the navigation toolbar to reclaim space for results.
               endOffset = startOffset;
             }
             let identityIcon = document.getElementById("identity-icon");
             let identityRect =
-              this.DOMWindowUtils.getBoundsWithoutFlushing(identityIcon);
+              window.windowUtils.getBoundsWithoutFlushing(identityIcon);
             let start = popupDirection == "rtl" ?
                         documentRect.right - identityRect.right :
                         identityRect.left;
             if (!this.margins || start != this.margins.start ||
                                  endOffset != this.margins.end ||
                                  width != this.margins.width) {
               this.margins = { start, end: endOffset, width };
               needsHandleOverUnderflow = true;
@@ -2181,18 +2173,18 @@ file, You can obtain one at http://mozil
             // Not critical for the urlbar functionality, just report the error.
             Cu.reportError(ex);
           }
 
           // Position the popup below the navbar.  To get the y-coordinate,
           // which is an offset from the bottom of the input, subtract the
           // bottom of the navbar from the buttom of the input.
           let yOffset = Math.round(
-            this.DOMWindowUtils.getBoundsWithoutFlushing(document.getElementById("nav-bar")).bottom -
-            this.DOMWindowUtils.getBoundsWithoutFlushing(aInput).bottom);
+            window.windowUtils.getBoundsWithoutFlushing(document.getElementById("nav-bar")).bottom -
+            window.windowUtils.getBoundsWithoutFlushing(aInput).bottom);
 
           this.openPopup(aElement, "after_start", 0, yOffset, false, false);
 
           // Do this immediately after we've requested the popup to open. This
           // will cause sync reflows but prevents flickering.
           if (needsHandleOverUnderflow) {
             for (let item of this.richlistbox.childNodes) {
               item.handleOverUnderflow();