--- a/gfx/layers/client/ContentClient.cpp
+++ b/gfx/layers/client/ContentClient.cpp
@@ -326,17 +326,19 @@ ContentClientRemoteBuffer::CreateBackBuf
       mForwarder->GetCompositorBackendType(),
       mTextureFlags | ExtraTextureFlags(),
       TextureAllocationFlags::ALLOC_CLEAR_BUFFER_WHITE
     );
     if (!mTextureClientOnWhite || !AddTextureClient(mTextureClientOnWhite)) {
       AbortTextureClientCreation();
       return;
     }
-    mTextureClientOnWhite->EnableBlockingReadLock();
+    // We don't enable the readlock for the white buffer since we always
+    // use them together and waiting on the lock for the black
+    // should be sufficient.
   }
 }
 
 void
 ContentClientRemoteBuffer::CreateBuffer(ContentType aType,
                                         const IntRect& aRect,
                                         uint32_t aFlags,
                                         RefPtr<gfx::DrawTarget>* aBlackDT,