--- a/accessible/src/base/nsAccessibilityService.cpp
+++ b/accessible/src/base/nsAccessibilityService.cpp
@@ -245,17 +245,16 @@ nsAccessibilityService::ContentRangeInse
   if (logging::IsEnabled(logging::eTree)) {
     logging::MsgBegin("TREE", "content inserted");
     logging::Node("container", aContainer);
     for (nsIContent* child = aStartChild; child != aEndChild;
          child = child->GetNextSibling()) {
       logging::Node("content", child);
     }
     logging::MsgEnd();
-    logging::Stack();
   }
 #endif
 
   DocAccessible* docAccessible = GetDocAccessible(aPresShell);
   if (docAccessible)
     docAccessible->ContentInserted(aContainer, aStartChild, aEndChild);
 }
 
@@ -265,17 +264,16 @@ nsAccessibilityService::ContentRemoved(n
                                        nsIContent* aChild)
 {
 #ifdef A11Y_LOG
   if (logging::IsEnabled(logging::eTree)) {
     logging::MsgBegin("TREE", "content removed");
     logging::Node("container", aContainer);
     logging::Node("content", aChild);
     logging::MsgEnd();
-    logging::Stack();
   }
 #endif
 
   DocAccessible* docAccessible = GetDocAccessible(aPresShell);
   if (docAccessible)
     docAccessible->ContentRemoved(aContainer, aChild);
 }
 

--- a/accessible/tests/mochitest/name/markup.js
+++ b/accessible/tests/mochitest/name/markup.js
@@ -9,17 +9,17 @@ var gRuleDoc = null;
 var gDumpToConsole = true;
 
 /**
  * Start name tests. Run through markup elements and test names for test
  * element (see namerules.xml for details).
  */
 function testNames()
 {
-  enableLogging("tree,stack");
+  enableLogging("tree");
 
   var request = new XMLHttpRequest();
   request.open("get", gNameRulesFileURL, false);
   request.send();
 
   gRuleDoc = request.responseXML;
 
   var markupElms = evaluateXPath(gRuleDoc, "//rules/rulesample/markup");