diff --git a/dom/indexedDB/test/gtest/TestSafeRefPtr.cpp b/dom/indexedDB/test/gtest/TestSafeRefPtr.cpp
index 0dae30babd18..f3536db27821 100644
--- a/dom/indexedDB/test/gtest/TestSafeRefPtr.cpp
+++ b/dom/indexedDB/test/gtest/TestSafeRefPtr.cpp
@@ -273,18 +273,6 @@ TEST(DOM_IndexedDB_SafeRefPtr, SafeRefPtrFromThis_DiscardInCtor)
   ASSERT_EQ(1, SafeBase::sNumDestroyed);
 }
 
-TEST(DOM_IndexedDB_SafeRefPtr, Construct_FromSelf)
-{
-  SafeBase::sNumDestroyed = 0;
-  {
-    SafeRefPtr<SafeBase> ptr = MakeSafeRefPtr<SafeBase>();
-    ptr = std::move(ptr);
-    ASSERT_EQ(1u, ptr->refCount());
-    ASSERT_EQ(0, SafeBase::sNumDestroyed);
-  }
-  ASSERT_EQ(1, SafeBase::sNumDestroyed);
-}
-
 static_assert(
     std::is_same_v<SafeRefPtr<Base>,
                    decltype(std::declval<bool>() ? MakeSafeRefPtr<Derived>()
diff --git a/mfbt/tests/TestRefPtr.cpp b/mfbt/tests/TestRefPtr.cpp
index 4558fd96c0e0..489b120ae2aa 100644
--- a/mfbt/tests/TestRefPtr.cpp
+++ b/mfbt/tests/TestRefPtr.cpp
@@ -119,13 +119,6 @@ int main() {
   }
   MOZ_RELEASE_ASSERT(11 == Foo::sNumDestroyed);
 
-  {
-    RefPtr<Foo> f = new Foo();
-    f = std::move(f);
-    MOZ_RELEASE_ASSERT(11 == Foo::sNumDestroyed);
-  }
-  MOZ_RELEASE_ASSERT(12 == Foo::sNumDestroyed);
-
   {
     bool condition = true;
     const auto f =