diff --git a/mozilla/browser/app/splash.rc b/mozilla/browser/app/splash.rc
index 67a24bb6862..bf6d5d10245 100644
--- a/mozilla/browser/app/splash.rc
+++ b/mozilla/browser/app/splash.rc
@@ -68,6 +68,7 @@ END
 #define IDC_COLRESIZE                   4108
 #define IDC_ROWRESIZE                   4109
 #define IDC_VERTICALTEXT                4110
+#define IDC_NONE                        4112
 
 IDC_GRAB                CURSOR  DISCARDABLE     "../../widget/src/build/res/grab.cur"
 IDC_GRABBING            CURSOR  DISCARDABLE     "../../widget/src/build/res/grabbing.cur"
@@ -79,5 +80,6 @@ IDC_ZOOMOUT             CURSOR  DISCARDABLE     "../../widget/src/build/res/zoom
 IDC_COLRESIZE           CURSOR  DISCARDABLE     "../../widget/src/build/res/col_resize.cur"
 IDC_ROWRESIZE           CURSOR  DISCARDABLE     "../../widget/src/build/res/row_resize.cur"
 IDC_VERTICALTEXT        CURSOR  DISCARDABLE     "../../widget/src/build/res/vertical_text.cur"
+IDC_NONE                CURSOR  DISCARDABLE     "../../widget/src/build/res/none.cur"
 
 #endif
diff --git a/mozilla/browser/app/splashos2.rc b/mozilla/browser/app/splashos2.rc
index ef28454557d..4cb05869a42 100644
--- a/mozilla/browser/app/splashos2.rc
+++ b/mozilla/browser/app/splashos2.rc
@@ -71,6 +71,7 @@ POINTER IDC_ZOOMOUT        "..\\..\\widget\\src\\os2\\res\\zoom_out.ptr"
 POINTER IDC_ARROWWAIT      "..\\..\\widget\\src\\os2\\res\\arrow_wait.ptr"
 POINTER IDC_CROSS          "..\\..\\widget\\src\\os2\\res\\crosshair.ptr"
 POINTER IDC_HELP           "..\\..\\widget\\src\\os2\\res\\help.ptr"
+POINTER IDC_NONE           "..\\..\\widget\\src\\os2\\res\\help.ptr"
 
 ICON    IDC_DNDURL         "..\\..\\widget\\src\\os2\\res\\dndurl.ico"
 ICON    IDC_DNDTEXT        "..\\..\\widget\\src\\os2\\res\\dndtext.ico"
diff --git a/mozilla/calendar/sunbird/app/splash.rc b/mozilla/calendar/sunbird/app/splash.rc
index f340b74c175..5319a264df6 100644
--- a/mozilla/calendar/sunbird/app/splash.rc
+++ b/mozilla/calendar/sunbird/app/splash.rc
@@ -79,6 +79,7 @@ IDC_SELECTANCHOR        CURSOR  DISCARDABLE     "../../widget/src/build/res/sele
 #define IDC_COLRESIZE                   4108
 #define IDC_ROWRESIZE                   4109
 #define IDC_VERTICALTEXT                4110
+#define IDC_NONE                        4112
 
 IDC_GRAB                CURSOR  DISCARDABLE     "../../widget/src/build/res/grab.cur"
 IDC_GRABBING            CURSOR  DISCARDABLE     "../../widget/src/build/res/grabbing.cur"
@@ -90,5 +91,6 @@ IDC_ZOOMOUT             CURSOR  DISCARDABLE     "../../widget/src/build/res/zoom
 IDC_COLRESIZE           CURSOR  DISCARDABLE     "../../widget/src/build/res/col_resize.cur"
 IDC_ROWRESIZE           CURSOR  DISCARDABLE     "../../widget/src/build/res/row_resize.cur"
 IDC_VERTICALTEXT        CURSOR  DISCARDABLE     "../../widget/src/build/res/vertical_text.cur"
+IDC_NONE                CURSOR  DISCARDABLE     "../../widget/src/build/res/none.cur"
 
 #endif
diff --git a/mozilla/calendar/sunbird/app/splashos2.rc b/mozilla/calendar/sunbird/app/splashos2.rc
index 9e96ba03cf3..7f1392dd19b 100644
--- a/mozilla/calendar/sunbird/app/splashos2.rc
+++ b/mozilla/calendar/sunbird/app/splashos2.rc
@@ -71,6 +71,7 @@ POINTER IDC_ZOOMOUT        "..\\..\\..\\widget\\src\\os2\\res\\zoom_out.ptr"
 POINTER IDC_ARROWWAIT      "..\\..\\..\\widget\\src\\os2\\res\\arrow_wait.ptr"
 POINTER IDC_CROSS          "..\\..\\..\\widget\\src\\os2\\res\\crosshair.ptr"
 POINTER IDC_HELP           "..\\..\\..\\widget\\src\\os2\\res\\help.ptr"
+POINTER IDC_NONE           "..\\..\\..\\widget\\src\\os2\\res\\help.ptr"
 
 ICON    IDC_DNDURL         "..\\..\\..\\widget\\src\\os2\\res\\dndurl.ico"
 ICON    IDC_DNDTEXT        "..\\..\\..\\widget\\src\\os2\\res\\dndtext.ico"
diff --git a/mozilla/content/events/src/nsEventStateManager.cpp b/mozilla/content/events/src/nsEventStateManager.cpp
index e9cb325c543..c007bd2199b 100644
--- a/mozilla/content/events/src/nsEventStateManager.cpp
+++ b/mozilla/content/events/src/nsEventStateManager.cpp
@@ -2859,6 +2859,9 @@ nsEventStateManager::SetCursor(PRInt32 aCursor, imgIContainer* aContainer,
   case NS_STYLE_CURSOR_EW_RESIZE:
     c = eCursor_ew_resize;
     break;
+  case NS_STYLE_CURSOR_NONE:
+    c = eCursor_none;
+    break;
   }
 
   // First, try the imgIContainer, if non-null
diff --git a/mozilla/layout/base/nsStyleConsts.h b/mozilla/layout/base/nsStyleConsts.h
index cda21116ab2..9cf311fab60 100644
--- a/mozilla/layout/base/nsStyleConsts.h
+++ b/mozilla/layout/base/nsStyleConsts.h
@@ -324,6 +324,7 @@
 #define NS_STYLE_CURSOR_NWSE_RESIZE             33
 #define NS_STYLE_CURSOR_NS_RESIZE               34
 #define NS_STYLE_CURSOR_EW_RESIZE               35
+#define NS_STYLE_CURSOR_NONE                    36
 
 // See nsStyleDisplay
 #define NS_STYLE_DIRECTION_LTR                  0
diff --git a/mozilla/layout/style/nsCSSProps.cpp b/mozilla/layout/style/nsCSSProps.cpp
index 6ccfe331ead..b0f5a5e1079 100644
--- a/mozilla/layout/style/nsCSSProps.cpp
+++ b/mozilla/layout/style/nsCSSProps.cpp
@@ -500,6 +500,7 @@ const PRInt32 nsCSSProps::kCursorKTable[] = {
   eCSSKeyword_nwse_resize, NS_STYLE_CURSOR_NWSE_RESIZE,
   eCSSKeyword_ns_resize, NS_STYLE_CURSOR_NS_RESIZE,
   eCSSKeyword_ew_resize, NS_STYLE_CURSOR_EW_RESIZE,
+  eCSSKeyword_none, NS_STYLE_CURSOR_NONE,
   // -moz- prefixed aliases for some CSS3 cursors for backward compat
   eCSSKeyword__moz_copy, NS_STYLE_CURSOR_COPY,
   eCSSKeyword__moz_alias, NS_STYLE_CURSOR_ALIAS,
diff --git a/mozilla/layout/style/test/property_database.js b/mozilla/layout/style/test/property_database.js
index a93bf886a3d..3e81eccf9ca 100644
--- a/mozilla/layout/style/test/property_database.js
+++ b/mozilla/layout/style/test/property_database.js
@@ -836,7 +836,7 @@ var gCSSProperties = {
 		inherited: true,
 		type: CSS_TYPE_LONGHAND,
 		initial_values: [ "auto" ],
-		other_values: [ "crosshair", "default", "pointer", "move", "e-resize", "ne-resize", "nw-resize", "n-resize", "se-resize", "sw-resize", "s-resize", "w-resize", "text", "wait", "help", "progress" ],
+		other_values: [ "crosshair", "default", "pointer", "move", "e-resize", "ne-resize", "nw-resize", "n-resize", "se-resize", "sw-resize", "s-resize", "w-resize", "text", "wait", "help", "progress", "none" ],
 		invalid_values: []
 	},
 	"direction": {
diff --git a/mozilla/mail/app/splash.rc b/mozilla/mail/app/splash.rc
index 1042f0a1c25..29ccaa91547 100644
--- a/mozilla/mail/app/splash.rc
+++ b/mozilla/mail/app/splash.rc
@@ -70,6 +70,7 @@ END
 #define IDC_COLRESIZE                   4108
 #define IDC_ROWRESIZE                   4109
 #define IDC_VERTICALTEXT                4110
+#define IDC_NONE                        4112
 
 IDC_GRAB                CURSOR  DISCARDABLE     "../../widget/src/build/res/grab.cur"
 IDC_GRABBING            CURSOR  DISCARDABLE     "../../widget/src/build/res/grabbing.cur"
@@ -81,6 +82,7 @@ IDC_ZOOMOUT             CURSOR  DISCARDABLE     "../../widget/src/build/res/zoom
 IDC_COLRESIZE           CURSOR  DISCARDABLE     "../../widget/src/build/res/col_resize.cur"
 IDC_ROWRESIZE           CURSOR  DISCARDABLE     "../../widget/src/build/res/row_resize.cur"
 IDC_VERTICALTEXT        CURSOR  DISCARDABLE     "../../widget/src/build/res/vertical_text.cur"
+IDC_NONE                CURSOR  DISCARDABLE     "../../widget/src/build/res/none.cur"
 
 // For some reason IDI_MAILBIFF needs to be larger than the value of IDI_APPLICATION for static builds
 #define IDI_MAILBIFF 101
diff --git a/mozilla/mail/app/splashos2.rc b/mozilla/mail/app/splashos2.rc
index b72dd12ed0a..dd5f635b151 100644
--- a/mozilla/mail/app/splashos2.rc
+++ b/mozilla/mail/app/splashos2.rc
@@ -71,6 +71,7 @@ POINTER IDC_ZOOMOUT        "..\\..\\widget\\src\\os2\\res\\zoom_out.ptr"
 POINTER IDC_ARROWWAIT      "..\\..\\widget\\src\\os2\\res\\arrow_wait.ptr"
 POINTER IDC_CROSS          "..\\..\\widget\\src\\os2\\res\\crosshair.ptr"
 POINTER IDC_HELP           "..\\..\\widget\\src\\os2\\res\\help.ptr"
+POINTER IDC_NONE           "..\\..\\widget\\src\\os2\\res\\help.ptr"
 
 ICON    IDC_DNDURL         "..\\..\\widget\\src\\os2\\res\\dndurl.ico"
 ICON    IDC_DNDTEXT        "..\\..\\widget\\src\\os2\\res\\dndtext.ico"
diff --git a/mozilla/suite/app/splashos2.rc b/mozilla/suite/app/splashos2.rc
index 3d2fab6fae0..bd6c8834913 100644
--- a/mozilla/suite/app/splashos2.rc
+++ b/mozilla/suite/app/splashos2.rc
@@ -61,6 +61,7 @@ POINTER IDC_ZOOMOUT      "..\\..\\widget\\src\\os2\\res\\zoom_out.ptr"
 POINTER IDC_ARROWWAIT    "..\\..\\widget\\src\\os2\\res\\arrow_wait.ptr"
 POINTER IDC_CROSS        "..\\..\\widget\\src\\os2\\res\\crosshair.ptr"
 POINTER IDC_HELP         "..\\..\\widget\\src\\os2\\res\\help.ptr"
+POINTER IDC_NONE         "..\\..\\widget\\src\\os2\\res\\help.ptr"
 
 ICON    IDC_DNDURL       "..\\..\\widget\\src\\os2\\res\\dndurl.ico"
 ICON    IDC_DNDTEXT      "..\\..\\widget\\src\\os2\\res\\dndtext.ico"
diff --git a/mozilla/toolkit/library/xulrunos2.rc b/mozilla/toolkit/library/xulrunos2.rc
index 4a0ad1e73fc..4306e8a655a 100644
--- a/mozilla/toolkit/library/xulrunos2.rc
+++ b/mozilla/toolkit/library/xulrunos2.rc
@@ -49,6 +49,7 @@ POINTER IDC_ZOOMOUT        "..\\..\\widget\\src\\os2\\res\\zoom_out.ptr"
 POINTER IDC_ARROWWAIT      "..\\..\\widget\\src\\os2\\res\\arrow_wait.ptr"
 POINTER IDC_CROSS          "..\\..\\widget\\src\\os2\\res\\crosshair.ptr"
 POINTER IDC_HELP           "..\\..\\widget\\src\\os2\\res\\help.ptr"
+POINTER IDC_NONE           "..\\..\\widget\\src\\os2\\res\\help.ptr"
 
 ICON    IDC_DNDURL         "..\\..\\widget\\src\\os2\\res\\dndurl.ico"
 ICON    IDC_DNDTEXT        "..\\..\\widget\\src\\os2\\res\\dndtext.ico"
diff --git a/mozilla/widget/public/nsIWidget.h b/mozilla/widget/public/nsIWidget.h
index 8f7fc73ca00..1773ffc10d0 100644
--- a/mozilla/widget/public/nsIWidget.h
+++ b/mozilla/widget/public/nsIWidget.h
@@ -206,6 +206,7 @@ enum nsCursor {   ///(normal cursor,       usually rendered as an arrow)
                 eCursor_nwse_resize,
                 eCursor_ns_resize,
                 eCursor_ew_resize,
+                eCursor_none,
                 // This one better be the last one in this list.
                 eCursorCount
                 }; 
diff --git a/mozilla/widget/src/beos/nsWindow.cpp b/mozilla/widget/src/beos/nsWindow.cpp
index e4d5936702e..32ca1c83fad 100644
--- a/mozilla/widget/src/beos/nsWindow.cpp
+++ b/mozilla/widget/src/beos/nsWindow.cpp
@@ -1420,6 +1420,10 @@ NS_METHOD nsWindow::SetCursor(nsCursor aCursor)
 				newCursor = (BCursor *)gCursorArray.SafeElementAt(1);
 				break;
 
+			case eCursor_none:
+				// XXX: No suitable cursor, needs implementing
+				break;
+
 			default:
 				NS_ASSERTION(0, "Invalid cursor type");
 				break;
diff --git a/mozilla/widget/src/build/res/none.cur b/mozilla/widget/src/build/res/none.cur
new file mode 100644
index 00000000000..2114dfaee3a
Binary files /dev/null and b/mozilla/widget/src/build/res/none.cur differ
diff --git a/mozilla/widget/src/build/widget.rc b/mozilla/widget/src/build/widget.rc
index fab3d2d7903..efa88bb2730 100644
--- a/mozilla/widget/src/build/widget.rc
+++ b/mozilla/widget/src/build/widget.rc
@@ -50,6 +50,7 @@ IDC_ZOOMOUT             CURSOR  DISCARDABLE     "res/zoom_out.cur"
 IDC_COLRESIZE           CURSOR  DISCARDABLE     "res/col_resize.cur"
 IDC_ROWRESIZE           CURSOR  DISCARDABLE     "res/row_resize.cur"
 IDC_VERTICALTEXT        CURSOR  DISCARDABLE     "res/vertical_text.cur"
+IDC_NONE                CURSOR  DISCARDABLE     "res/none.cur"
 
 OPTPROPSHEET DIALOG DISCARDABLE  32, 32, 288, 226
 STYLE DS_MODALFRAME | DS_3DLOOK | DS_CONTEXTHELP | WS_POPUP | WS_VISIBLE | 
diff --git a/mozilla/widget/src/cocoa/nsCursorManager.mm b/mozilla/widget/src/cocoa/nsCursorManager.mm
index af1f9666dce..3783b295026 100644
--- a/mozilla/widget/src/cocoa/nsCursorManager.mm
+++ b/mozilla/widget/src/cocoa/nsCursorManager.mm
@@ -199,6 +199,13 @@ static nsCursorManager *gInstance;
   if (aCursor != mCurrentCursor) {
     [[self getCursor: mCurrentCursor] unset];
     [[self getCursor: aCursor] set];
+
+    if (aCursor == eCursor_none) {
+      [NSCursor hide];
+    } else if (mCurrentCursor == eCursor_none) {
+      [NSCursor unhide];
+    }
+
     mCurrentCursor = aCursor;
   }
 }
diff --git a/mozilla/widget/src/gtk2/nsGtkCursors.h b/mozilla/widget/src/gtk2/nsGtkCursors.h
index 987ab778e2e..2c278e388f3 100644
--- a/mozilla/widget/src/gtk2/nsGtkCursors.h
+++ b/mozilla/widget/src/gtk2/nsGtkCursors.h
@@ -426,6 +426,33 @@ static const unsigned char moz_nwse_resize_mask_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
+/* MOZ_CURSOR_NONE */
+static const unsigned char moz_none_bits[] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+static const unsigned char moz_none_mask_bits[] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
 enum {
   MOZ_CURSOR_HAND_GRAB,
   MOZ_CURSOR_HAND_GRABBING,
@@ -440,7 +467,8 @@ enum {
   MOZ_CURSOR_ROW_RESIZE,
   MOZ_CURSOR_VERTICAL_TEXT,
   MOZ_CURSOR_NESW_RESIZE,
-  MOZ_CURSOR_NWSE_RESIZE
+  MOZ_CURSOR_NWSE_RESIZE,
+  MOZ_CURSOR_NONE
 };
 
 // create custom pixmap cursor from cursors in nsGTKCursorData.h
@@ -458,7 +486,8 @@ static const nsGtkCursor GtkCursors[] = {
   { moz_row_resize_bits,     moz_row_resize_mask_bits,     7,  9  },
   { moz_vertical_text_bits,  moz_vertical_text_mask_bits,  8,  4  },
   { moz_nesw_resize_bits,    moz_nesw_resize_mask_bits,    8,  8  },
-  { moz_nwse_resize_bits,    moz_nwse_resize_mask_bits,    8,  8  }
+  { moz_nwse_resize_bits,    moz_nwse_resize_mask_bits,    8,  8  },
+  { moz_none_bits,           moz_none_mask_bits,           0,  0  }
 };
 
 #endif /* nsGtkCursors_h__ */
diff --git a/mozilla/widget/src/gtk2/nsWindow.cpp b/mozilla/widget/src/gtk2/nsWindow.cpp
index 06bebcf8a88..fa26aabf349 100644
--- a/mozilla/widget/src/gtk2/nsWindow.cpp
+++ b/mozilla/widget/src/gtk2/nsWindow.cpp
@@ -4356,6 +4356,9 @@ get_gtk_cursor(nsCursor aCursor)
     case eCursor_ew_resize:
         gdkcursor = gdk_cursor_new(GDK_SB_H_DOUBLE_ARROW);
         break;
+    case eCursor_none:
+        newType = MOZ_CURSOR_NONE;
+        break;
     default:
         NS_ASSERTION(aCursor, "Invalid cursor type");
         gdkcursor = gdk_cursor_new(GDK_LEFT_PTR);
diff --git a/mozilla/widget/src/os2/nsWindow.cpp b/mozilla/widget/src/os2/nsWindow.cpp
index ea16535852b..142689a1147 100644
--- a/mozilla/widget/src/os2/nsWindow.cpp
+++ b/mozilla/widget/src/os2/nsWindow.cpp
@@ -1807,6 +1807,10 @@ NS_METHOD nsWindow::SetCursor(nsCursor aCursor)
       newPointer = ::WinQuerySysPointer(HWND_DESKTOP, SPTR_SIZEWE, FALSE);
       break;
   
+    case eCursor_none:
+      newPointer = gPtrArray[IDC_NONE-IDC_BASE];
+      break;
+  
     default:
       NS_ASSERTION(0, "Invalid cursor type");
       break;
diff --git a/mozilla/widget/src/os2/wdgtos2rc.h b/mozilla/widget/src/os2/wdgtos2rc.h
index f1fa44db9f3..ba4a63260b7 100644
--- a/mozilla/widget/src/os2/wdgtos2rc.h
+++ b/mozilla/widget/src/os2/wdgtos2rc.h
@@ -48,11 +48,12 @@
 #define IDC_COLRESIZE                   4108
 #define IDC_ROWRESIZE                   4109
 #define IDC_VERTICALTEXT                4110
+#define IDC_NONE                        4112
 
 /* OS/2 specific */
-#define IDC_ARROWWAIT                   4111
-#define IDC_CROSS                       4112
-#define IDC_HELP                        4113
+#define IDC_ARROWWAIT                   4113
+#define IDC_CROSS                       4114
+#define IDC_HELP                        4115
 
 #define IDC_COUNT IDC_HELP-IDC_BASE+1
 
diff --git a/mozilla/widget/src/os2/widget.rc b/mozilla/widget/src/os2/widget.rc
index 702e27dae25..7deb2be1a12 100644
--- a/mozilla/widget/src/os2/widget.rc
+++ b/mozilla/widget/src/os2/widget.rc
@@ -52,6 +52,7 @@ POINTER IDC_VERTICALTEXT   res\vertical_text.ptr
 POINTER IDC_ARROWWAIT      res\arrow_wait.ptr
 POINTER IDC_CROSS          res\crosshair.ptr
 POINTER IDC_HELP           res\help.ptr
+POINTER IDC_NONE           res\help.ptr
 
 ICON    IDC_DNDURL         res\dndurl.ico
 ICON    IDC_DNDTEXT        res\dndtext.ico
diff --git a/mozilla/widget/src/windows/nsWindow.cpp b/mozilla/widget/src/windows/nsWindow.cpp
index 1b490b80e42..8479e50a805 100644
--- a/mozilla/widget/src/windows/nsWindow.cpp
+++ b/mozilla/widget/src/windows/nsWindow.cpp
@@ -2500,6 +2500,10 @@ NS_METHOD nsWindow::SetCursor(nsCursor aCursor)
       newCursor = ::LoadCursor(NULL, IDC_SIZEWE);
       break;
 
+    case eCursor_none:
+      newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_NONE));
+      break;
+
     default:
       NS_ERROR("Invalid cursor type");
       break;
diff --git a/mozilla/widget/src/windows/resource.h b/mozilla/widget/src/windows/resource.h
index 0313be14aa5..09819d053b6 100644
--- a/mozilla/widget/src/windows/resource.h
+++ b/mozilla/widget/src/windows/resource.h
@@ -45,4 +45,4 @@
 #define IDC_ROWRESIZE                   4109
 #define IDC_VERTICALTEXT                4110
 #define IDC_DUMMY_CE_MENUBAR            4111
-
+#define IDC_NONE                        4112
diff --git a/mozilla/xulrunner/app/splash.rc b/mozilla/xulrunner/app/splash.rc
index 02dba1da8a7..3174607dab8 100644
--- a/mozilla/xulrunner/app/splash.rc
+++ b/mozilla/xulrunner/app/splash.rc
@@ -72,6 +72,7 @@ END
 #define IDC_COLRESIZE                   4108
 #define IDC_ROWRESIZE                   4109
 #define IDC_VERTICALTEXT                4110
+#define IDC_NONE                        4112
 
 IDC_GRAB                CURSOR  DISCARDABLE     "..\\..\\widget\\src\\build\\res\\grab.cur"
 IDC_GRABBING            CURSOR  DISCARDABLE     "..\\..\\widget\\src\\build\\res\\grabbing.cur"
@@ -83,5 +84,6 @@ IDC_ZOOMOUT             CURSOR  DISCARDABLE     "..\\..\\widget\\src\\build\\res
 IDC_COLRESIZE           CURSOR  DISCARDABLE     "..\\..\\widget\\src\\build\\res\\col_resize.cur"
 IDC_ROWRESIZE           CURSOR  DISCARDABLE     "..\\..\\widget\\src\\build\\res\\row_resize.cur"
 IDC_VERTICALTEXT        CURSOR  DISCARDABLE     "..\\..\\widget\\src\\build\\res\\vertical_text.cur"
+IDC_NONE                CURSOR  DISCARDABLE     "..\\..\\widget\\src\\build\\res\\none.cur"
 
 #endif
diff --git a/mozilla/xulrunner/app/splashos2.rc b/mozilla/xulrunner/app/splashos2.rc
index 6aa82fc21d4..f7938480b72 100644
--- a/mozilla/xulrunner/app/splashos2.rc
+++ b/mozilla/xulrunner/app/splashos2.rc
@@ -71,6 +71,7 @@ POINTER IDC_ZOOMOUT        "..\\..\\widget\\src\\os2\\res\\zoom_out.ptr"
 POINTER IDC_ARROWWAIT      "..\\..\\widget\\src\\os2\\res\\arrow_wait.ptr"
 POINTER IDC_CROSS          "..\\..\\widget\\src\\os2\\res\\crosshair.ptr"
 POINTER IDC_HELP           "..\\..\\widget\\src\\os2\\res\\help.ptr"
+POINTER IDC_NONE           "..\\..\\widget\\src\\os2\\res\\help.ptr"
 
 ICON    IDC_DNDURL         "..\\..\\widget\\src\\os2\\res\\dndurl.ico"
 ICON    IDC_DNDTEXT        "..\\..\\widget\\src\\os2\\res\\dndtext.ico"