diff --git a/layout/base/tests/multi-range-user-select-ref.html b/layout/base/tests/multi-range-user-select-ref.html
index b50ffc65071..812bae04791 100644
--- a/layout/base/tests/multi-range-user-select-ref.html
+++ b/layout/base/tests/multi-range-user-select-ref.html
@@ -107,6 +107,10 @@ function runTest() {
       } else {
         addChildRanges([[0,160,0,170]], e);
       }
+    } else if (test == "#prev8") {
+      if (op == "AD") {
+        addChildRanges([[0,150,0,155], [0,68,0,70]], e);
+      }
     }
   } else {
     if (test == "#next1") {
@@ -145,6 +149,10 @@ function runTest() {
       } else {
         sel.extend(e.firstChild, 170);
       }
+    } else if (test == "#next8") {
+      if (op == "AD") {
+        addChildRanges([[0,68,0,70], [0,150,0,155]], e);
+      }
     }
   }
   document.documentElement.removeAttribute("class");
diff --git a/layout/base/tests/multi-range-user-select.html b/layout/base/tests/multi-range-user-select.html
index 89814abbd7e..936df758300 100644
--- a/layout/base/tests/multi-range-user-select.html
+++ b/layout/base/tests/multi-range-user-select.html
@@ -125,6 +125,21 @@ function runTest() {
         action(e, 500, 125);
         checkRanges([[6,0,6,10]], e);
       }
+    } else if (test == "#prev8") {
+      if (action == accelDragSelect) {
+        sel.removeAllRanges();
+        var e = document.querySelector('#select');
+        synthesizeMouse(e, 200, 125, {type: "mousedown", accelKey: true});
+        synthesizeMouse(e, 200, 120, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 100, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 80, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 210, 60, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 60, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 60, {type: "mouseup", accelKey: true});
+        var x3t = e.childNodes[3].firstChild;
+        var x5 = e.childNodes[5];
+        checkRanges([[x3t,3,-1,4], [x5,0,x5.firstChild,5]], e);
+      }
     }
   } else {
     if (test == "#next1") {
@@ -185,6 +200,22 @@ function runTest() {
         var r = sel.getRangeAt(2);
         checkRangePoints(r, [e.childNodes[5],0,e.childNodes[6],10], e);
       }
+    } else if (test == "#next8") {
+      if (action == accelDragSelect) {
+        sel.removeAllRanges();
+        var e = document.querySelector('#select');
+        synthesizeMouse(e, 200, 60, {type: "mousedown", accelKey: true});
+        synthesizeMouse(e, 180, 60, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 80, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 100, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 120, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 190, 125, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 125, {type: "mousemove", accelKey: true});
+        synthesizeMouse(e, 200, 125, {type: "mouseup", accelKey: true});
+        var x3t = e.childNodes[3].firstChild;
+        var x5 = e.childNodes[5];
+        checkRanges([[x3t,3,-1,4], [x5,0,x5.firstChild,5]], e);
+      }
     }
   }
   document.documentElement.removeAttribute("class");
diff --git a/layout/base/tests/test_reftests_with_caret.html b/layout/base/tests/test_reftests_with_caret.html
index c0fa6d73ec2..33744641d36 100644
--- a/layout/base/tests/test_reftests_with_caret.html
+++ b/layout/base/tests/test_reftests_with_caret.html
@@ -195,6 +195,8 @@ if ((navigator.platform.indexOf("Mac") >= 0 ||
     // eDirPrevious, Accel+drag-select (adding an additional range)
     [ 'multi-range-user-select.html#prev1AD' , 'multi-range-user-select-ref.html#prev1AD'  ] ,
     [ 'multi-range-user-select.html#prev7AD' , 'multi-range-user-select-ref.html#prev7AD'  ] ,
+    // eDirPrevious, Accel+drag-select (bug 1128722)
+    [ 'multi-range-user-select.html#prev8AD' , 'multi-range-user-select-ref.html#prev8AD'  ] ,
     // eDirPrevious, VK_RIGHT / LEFT
     [ 'multi-range-user-select.html#prev1SR' , 'multi-range-user-select-ref.html#prev1SR'  ] ,
     [ 'multi-range-user-select.html#prev1SL' , 'multi-range-user-select-ref.html#prev1SL'  ] ,
@@ -217,6 +219,8 @@ if ((navigator.platform.indexOf("Mac") >= 0 ||
     // eDirNext, Accel+drag-select (adding an additional range)
     [ 'multi-range-user-select.html#next1AD' , 'multi-range-user-select-ref.html#next1AD'  ] ,
     [ 'multi-range-user-select.html#next7AD' , 'multi-range-user-select-ref.html#next7AD'  ] ,
+    // eDirNext, Accel+drag-select (bug 1128722)
+    [ 'multi-range-user-select.html#next8AD' , 'multi-range-user-select-ref.html#next8AD'  ] ,
     // eDirNext, VK_RIGHT / LEFT
     [ 'multi-range-user-select.html#next1SR' , 'multi-range-user-select-ref.html#next1SR'  ] ,
     [ 'multi-range-user-select.html#next1SL' , 'multi-range-user-select-ref.html#next1SL'  ] ,