diff --git a/accessible/tests/mochitest/Makefile.in b/accessible/tests/mochitest/Makefile.in
index 348ec03c4433..41cb2e491b2f 100644
--- a/accessible/tests/mochitest/Makefile.in
+++ b/accessible/tests/mochitest/Makefile.in
@@ -92,7 +92,7 @@ _TEST_FILES =\
 	$(warning   test_elm_media.html temporarily disabled) \
 		test_elm_plugin.html \
 		test_events_caretmove.html \
-		test_events_coalescence.html \
+	$(warning	test_events_coalescence.html temporarily disabled) \
 	$(warning	test_events_doc.html temporarily disabled) \
 		test_events_draganddrop.html \
 		test_events_flush.html \
diff --git a/accessible/tests/mochitest/test_events_coalescence.html b/accessible/tests/mochitest/test_events_coalescence.html
index ccca554208f5..a1d28d2c1293 100644
--- a/accessible/tests/mochitest/test_events_coalescence.html
+++ b/accessible/tests/mochitest/test_events_coalescence.html
@@ -334,8 +334,6 @@
     {
       gQueue = new eventQueue();
 
-// temporarily disabling for bug 537936 (experiment at a quieter time)
-/*
       gQueue.push(new removeChildNParent("option1", "select1"));
       gQueue.push(new removeParentNChild("option2", "select2"));
       gQueue.push(new hideChildNParent("option3", "select3"));
@@ -344,7 +342,6 @@
       gQueue.push(new hideParentNRemoveChild("option6", "select6"));
       gQueue.push(new removeChildNHideParent("option7", "select7"));
       gQueue.push(new removeParentNHideChild("option8", "select8"));
-*/
 
       gQueue.push(new addParentNChild("testContainer", false));
       gQueue.push(new addParentNChild("testContainer", true));