diff --git a/indra/llui/llnotificationptr.h b/indra/llui/llnotificationptr.h
index acc047527f..580f353c7d 100644
--- a/indra/llui/llnotificationptr.h
+++ b/indra/llui/llnotificationptr.h
@@ -27,9 +27,8 @@
 
 // Many classes just store a single LLNotificationPtr
 // and llnotifications.h is very large, so define this ligher header.
-#include <boost/shared_ptr.hpp>
 
 class LLNotification;
-typedef boost::shared_ptr<LLNotification> LLNotificationPtr;
+typedef std::shared_ptr<LLNotification> LLNotificationPtr;
 
 #endif
diff --git a/indra/llui/llnotifications.h b/indra/llui/llnotifications.h
index 2f4578da17..39576ad86d 100644
--- a/indra/llui/llnotifications.h
+++ b/indra/llui/llnotifications.h
@@ -85,7 +85,6 @@
 
 #include <boost/utility.hpp>
 #include <boost/shared_ptr.hpp>
-#include <boost/enable_shared_from_this.hpp>
 #include <boost/type_traits.hpp>
 #include <boost/signals2.hpp>
 #include <boost/range.hpp>
@@ -304,7 +303,7 @@ typedef boost::shared_ptr<LLNotificationVisibilityRule> LLNotificationVisibility
  */
 class LLNotification  : 
 	boost::noncopyable,
-	public boost::enable_shared_from_this<LLNotification>
+	public std::enable_shared_from_this<LLNotification>
 {
 LOG_CLASS(LLNotification);
 friend class LLNotifications;
@@ -743,7 +742,10 @@ public:
 	:	mFilter(filter), 
 		mItems() 
 	{}
-	virtual ~LLNotificationChannelBase() {}
+    virtual ~LLNotificationChannelBase()
+    {
+        mItems.clear();
+    }
 	// you can also connect to a Channel, so you can be notified of
 	// changes to this channel
     LLBoundListener connectChanged(const LLEventListener& slot)
@@ -873,6 +875,7 @@ class LLNotifications :
 {
 	LLSINGLETON(LLNotifications);
 	LOG_CLASS(LLNotifications);
+	virtual ~LLNotifications() {}
 
 public:
 
@@ -1070,7 +1073,11 @@ public:
 	LLPersistentNotificationChannel() 
 		:	LLNotificationChannel("Persistent", "Visible", &notificationFilter)
 	{}
-	virtual ~LLPersistentNotificationChannel() {}
+
+    virtual ~LLPersistentNotificationChannel()
+    {
+        mHistory.clear();
+    }
 
 	typedef std::vector<LLNotificationPtr> history_list_t;
 	history_list_t::iterator beginHistory() { sortHistory(); return mHistory.begin(); }
diff --git a/indra/newview/llmediactrl.h b/indra/newview/llmediactrl.h
index 958c76f261..bd24c47a4f 100644
--- a/indra/newview/llmediactrl.h
+++ b/indra/newview/llmediactrl.h
@@ -31,6 +31,7 @@
 
 #include "lluictrl.h"
 #include "llframetimer.h"
+#include "llnotificationptr.h"
 
 class LLViewBorder;
 class LLUICtrlFactory;
@@ -145,7 +146,7 @@ public:
 
 		void setTextureSize(S32 width, S32 height);
 
-		void showNotification(boost::shared_ptr<class LLNotification> notify);
+		void showNotification(LLNotificationPtr notify);
 		void hideNotification();
 
 		void setTrustedContent(bool trusted);