From d97dc043534cae937d49847ff4a97dbf6c853cc5 Mon Sep 17 00:00:00 2001
From: Bill McCloskey <wmccloskey@mozilla.com>
Date: Fri, 21 Nov 2014 14:01:45 -0800
Subject: [PATCH] Bug 1102635 - [e10s] Handle factory unregistration better in
 AboutProtocol shim (r=mconley)

---
 toolkit/components/addoncompat/RemoteAddonsChild.jsm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/toolkit/components/addoncompat/RemoteAddonsChild.jsm b/toolkit/components/addoncompat/RemoteAddonsChild.jsm
index 4f02a191986..f7655b9f392 100644
--- a/toolkit/components/addoncompat/RemoteAddonsChild.jsm
+++ b/toolkit/components/addoncompat/RemoteAddonsChild.jsm
@@ -325,8 +325,8 @@ let AboutProtocolChild = {
       this._instances[contractID] = instance;
       registrar.registerFactory(this._classID, this._classDescription, contractID, instance);
     } else {
+      registrar.unregisterFactory(this._classID, this._instances[contractID]);
       delete this._instances[contractID];
-      registerFactory.unregisterFactory(this._classID, this);
     }
   },
 };