--- a/dom/indexedDB/IDBDatabase.cpp
+++ b/dom/indexedDB/IDBDatabase.cpp
@@ -515,16 +515,17 @@ IDBDatabase::CreateObjectStore(
                             const IDBObjectStoreParameters& aOptionalParameters,
                             ErrorResult& aRv)
 {
   AssertIsOnOwningThread();
 
   IDBTransaction* transaction = IDBTransaction::GetCurrent();
 
   if (!transaction ||
+      transaction->Database() != this ||
       transaction->GetMode() != IDBTransaction::VERSION_CHANGE) {
     aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
     return nullptr;
   }
 
   MOZ_ASSERT(transaction->IsOpen());
 
   KeyPath keyPath(0);
@@ -590,16 +591,17 @@ IDBDatabase::CreateObjectStore(
 void
 IDBDatabase::DeleteObjectStore(const nsAString& aName, ErrorResult& aRv)
 {
   AssertIsOnOwningThread();
 
   IDBTransaction* transaction = IDBTransaction::GetCurrent();
 
   if (!transaction ||
+      transaction->Database() != this ||
       transaction->GetMode() != IDBTransaction::VERSION_CHANGE) {
     aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
     return;
   }
 
   MOZ_ASSERT(transaction->IsOpen());
 
   nsTArray<ObjectStoreSpec>& specArray = mSpec->objectStores();