diff --git a/storage/src/VacuumManager.cpp b/storage/src/VacuumManager.cpp
index ab3055175873..1417dae1ce75 100644
--- a/storage/src/VacuumManager.cpp
+++ b/storage/src/VacuumManager.cpp
@@ -244,7 +244,7 @@ Vacuumer::HandleError(mozIStorageError *aError)
   NS_WARNING(warnMsg.get());
 #endif
 
-  {
+  if (PR_LOG_TEST(gStorageLog, PR_LOG_ERROR)) {
     int32_t result;
     nsresult rv = aError->GetResult(&result);
     NS_ENSURE_SUCCESS(rv, rv);
diff --git a/storage/src/mozStorageConnection.cpp b/storage/src/mozStorageConnection.cpp
index 743491bd7b87..89f4d05d6f69 100644
--- a/storage/src/mozStorageConnection.cpp
+++ b/storage/src/mozStorageConnection.cpp
@@ -897,11 +897,13 @@ Connection::internalClose(sqlite3 *aNativeConnection)
   }
 #endif // DEBUG
 
-  nsAutoCString leafName(":memory");
-  if (mDatabaseFile)
-      (void)mDatabaseFile->GetNativeLeafName(leafName);
-  PR_LOG(gStorageLog, PR_LOG_NOTICE, ("Closing connection to '%s'",
-                                      leafName.get()));
+  if (PR_LOG_TEST(gStorageLog, PR_LOG_NOTICE)) {
+    nsAutoCString leafName(":memory");
+    if (mDatabaseFile)
+        (void)mDatabaseFile->GetNativeLeafName(leafName);
+    PR_LOG(gStorageLog, PR_LOG_NOTICE, ("Closing connection to '%s'",
+                                        leafName.get()));
+  }
 
   // At this stage, we may still have statements that need to be
   // finalized. Attempt to close the database connection. This will
diff --git a/storage/src/mozStorageStatement.cpp b/storage/src/mozStorageStatement.cpp
index 22b0960a9679..9b6ea3a0b504 100644
--- a/storage/src/mozStorageStatement.cpp
+++ b/storage/src/mozStorageStatement.cpp
@@ -604,7 +604,7 @@ Statement::ExecuteStep(bool *_moreResults)
   }
   int srv = mDBConnection->stepStatement(mNativeConnection, mDBStatement);
 
-  if (srv != SQLITE_ROW && srv != SQLITE_DONE) {
+  if (srv != SQLITE_ROW && srv != SQLITE_DONE && PR_LOG_TEST(gStorageLog, PR_LOG_DEBUG)) {
       nsAutoCString errStr;
       (void)mDBConnection->GetLastErrorString(errStr);
       PR_LOG(gStorageLog, PR_LOG_DEBUG,