diff --git a/widget/cocoa/nsMenuX.mm b/widget/cocoa/nsMenuX.mm
index 176f078d8f03..0cf60e7765b3 100644
--- a/widget/cocoa/nsMenuX.mm
+++ b/widget/cocoa/nsMenuX.mm
@@ -487,6 +487,9 @@ GeckoNSMenu* nsMenuX::CreateMenuWithGeckoString(nsString& aMenuTitle) {
   // overrides our decisions and things get incorrectly enabled/disabled.
   myMenu.autoenablesItems = NO;
 
+  // Disable the Services item for now. Bug 660452 tracks turning this on for the appropriate menus.
+  myMenu.allowsContextMenuPlugIns = NO;
+
   // we used to install Carbon event handlers here, but since NSMenu* doesn't
   // create its underlying MenuRef until just before display, we delay until
   // that happens. Now we install the event handlers when Cocoa notifies