diff --git a/toolkit/profile/nsToolkitProfileService.cpp b/toolkit/profile/nsToolkitProfileService.cpp
index f1ea2aa519390..b788d383c201f 100644
--- a/toolkit/profile/nsToolkitProfileService.cpp
+++ b/toolkit/profile/nsToolkitProfileService.cpp
@@ -2071,26 +2071,6 @@ nsToolkitProfileService::Flush() {
   return NS_OK;
 }
 
-NS_IMPL_ISUPPORTS(nsToolkitProfileFactory, nsIFactory)
-
-NS_IMETHODIMP
-nsToolkitProfileFactory::CreateInstance(const nsID& aIID, void** aResult) {
-  RefPtr<nsToolkitProfileService> profileService =
-      nsToolkitProfileService::gService;
-  if (!profileService) {
-    nsresult rv = NS_NewToolkitProfileService(getter_AddRefs(profileService));
-    if (NS_FAILED(rv)) return rv;
-  }
-  return profileService->QueryInterface(aIID, aResult);
-}
-
-nsresult NS_NewToolkitProfileFactory(nsIFactory** aResult) {
-  *aResult = new nsToolkitProfileFactory();
-
-  NS_ADDREF(*aResult);
-  return NS_OK;
-}
-
 nsresult NS_NewToolkitProfileService(nsToolkitProfileService** aResult) {
   nsToolkitProfileService* profileService = new nsToolkitProfileService();
   nsresult rv = profileService->Init();
diff --git a/toolkit/profile/nsToolkitProfileService.h b/toolkit/profile/nsToolkitProfileService.h
index d281d39ebe597..97ef74855956b 100644
--- a/toolkit/profile/nsToolkitProfileService.h
+++ b/toolkit/profile/nsToolkitProfileService.h
@@ -8,6 +8,7 @@
 #ifndef nsToolkitProfileService_h
 #define nsToolkitProfileService_h
 
+#include "mozilla/Components.h"
 #include "mozilla/LinkedList.h"
 #include "nsIToolkitProfileService.h"
 #include "nsIToolkitProfile.h"
@@ -64,14 +65,6 @@ class nsToolkitProfileLock final : public nsIProfileLock {
   nsProfileLock mLock;
 };
 
-class nsToolkitProfileFactory final : public nsIFactory {
-  ~nsToolkitProfileFactory() = default;
-
- public:
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSIFACTORY
-};
-
 class nsToolkitProfileService final : public nsIToolkitProfileService {
  public:
   NS_DECL_ISUPPORTS
@@ -87,8 +80,9 @@ class nsToolkitProfileService final : public nsIToolkitProfileService {
 
  private:
   friend class nsToolkitProfile;
-  friend class nsToolkitProfileFactory;
   friend nsresult NS_NewToolkitProfileService(nsToolkitProfileService**);
+  friend nsresult mozilla::xpcom::CreateInstanceImpl(
+      mozilla::xpcom::ModuleID aID, const nsIID& aIID, void** aResult);
 
   nsToolkitProfileService();
   ~nsToolkitProfileService();
diff --git a/toolkit/xre/components.conf b/toolkit/xre/components.conf
index 45fbe18717c82..5f23dc4a13b09 100644
--- a/toolkit/xre/components.conf
+++ b/toolkit/xre/components.conf
@@ -59,4 +59,11 @@ Classes = [
         'type': 'nsDialogParamBlock',
         'headers': ['/toolkit/components/windowwatcher/nsDialogParamBlock.h'],
     },
+    {
+        'cid': '{5f5e59ce-27bc-47eb-9d1f-b09ca9049836}',
+        'contract_ids': ['@mozilla.org/toolkit/profile-service;1'],
+        'type': 'nsToolkitProfileService',
+        'init_method': 'Init',
+        'headers': ['/toolkit/profile/nsToolkitProfileService.h'],
+    },
 ]
diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
index ca206b450ca27..47ddc99374e59 100644
--- a/toolkit/xre/nsAppRunner.cpp
+++ b/toolkit/xre/nsAppRunner.cpp
@@ -2063,30 +2063,6 @@ ScopedXPCOMStartup::~ScopedXPCOMStartup() {
   }
 }
 
-// {5F5E59CE-27BC-47eb-9D1F-B09CA9049836}
-static const nsCID kProfileServiceCID = {
-    0x5f5e59ce,
-    0x27bc,
-    0x47eb,
-    {0x9d, 0x1f, 0xb0, 0x9c, 0xa9, 0x4, 0x98, 0x36}};
-
-static already_AddRefed<nsIFactory> ProfileServiceFactoryConstructor(
-    const mozilla::Module& module, const mozilla::Module::CIDEntry& entry) {
-  nsCOMPtr<nsIFactory> factory;
-  NS_NewToolkitProfileFactory(getter_AddRefs(factory));
-  return factory.forget();
-}
-
-static const mozilla::Module::CIDEntry kXRECIDs[] = {
-    {&kProfileServiceCID, false, ProfileServiceFactoryConstructor, nullptr},
-    {nullptr}};
-
-static const mozilla::Module::ContractIDEntry kXREContracts[] = {
-    {NS_PROFILESERVICE_CONTRACTID, &kProfileServiceCID}, {nullptr}};
-
-extern const mozilla::Module kXREModule = {mozilla::Module::kVersion, kXRECIDs,
-                                           kXREContracts};
-
 nsresult ScopedXPCOMStartup::Initialize(bool aInitJSContext) {
   NS_ASSERTION(gDirServiceProvider, "Should not get here!");
 
diff --git a/toolkit/xre/nsAppRunner.h b/toolkit/xre/nsAppRunner.h
index 69508165dc90c..a09d665e3aa0f 100644
--- a/toolkit/xre/nsAppRunner.h
+++ b/toolkit/xre/nsAppRunner.h
@@ -80,8 +80,6 @@ already_AddRefed<nsINativeAppSupport> NS_GetNativeAppSupport();
 
 nsresult NS_NewToolkitProfileService(nsIToolkitProfileService** aResult);
 
-nsresult NS_NewToolkitProfileFactory(nsIFactory** aResult);
-
 /**
  * Try to acquire exclusive access to the specified profile directory.
  *
diff --git a/xpcom/components/StaticComponents.cpp.in b/xpcom/components/StaticComponents.cpp.in
index 5a6378fffda55..7b7c6b109ccc8 100644
--- a/xpcom/components/StaticComponents.cpp.in
+++ b/xpcom/components/StaticComponents.cpp.in
@@ -192,8 +192,7 @@ static void CallUnloadFuncs() {
 //# @unload_funcs@
 }
 
-static nsresult CreateInstanceImpl(ModuleID aID, const nsIID& aIID,
-                                   void** aResult) {
+nsresult CreateInstanceImpl(ModuleID aID, const nsIID& aIID, void** aResult) {
   // The full set of constructors for all static modules.
   // This switch statement will be compiled to a relative address jump table
   // with no runtime relocations and a single indirect jump.
diff --git a/xpcom/components/gen_static_components.py b/xpcom/components/gen_static_components.py
index 3a1714a7f9a8b..c38b17fcc8655 100644
--- a/xpcom/components/gen_static_components.py
+++ b/xpcom/components/gen_static_components.py
@@ -997,6 +997,10 @@ def replacer(match):
 %(module_ids)s
 };
 
+// May be added as a friend function to allow constructing services via
+// private constructors and init methods.
+nsresult CreateInstanceImpl(ModuleID aID, const nsIID& aIID, void** aResult);
+
 class MOZ_STACK_CLASS StaticModuleHelper : public nsCOMPtr_helper {
  public:
   StaticModuleHelper(ModuleID aId, nsresult* aErrorPtr)
diff --git a/xpcom/components/nsComponentManager.cpp b/xpcom/components/nsComponentManager.cpp
index b6cb6220c4246..58f77e31cbe40 100644
--- a/xpcom/components/nsComponentManager.cpp
+++ b/xpcom/components/nsComponentManager.cpp
@@ -277,7 +277,6 @@ extern const mozilla::Module kContentProcessWidgetModule;
 #if defined(MOZ_WIDGET_COCOA) || defined(MOZ_WIDGET_UIKIT)
 extern const mozilla::Module kWidgetModule;
 #endif
-extern const mozilla::Module kXREModule;
 
 static nsTArray<const mozilla::Module*>* sExtraStaticModules;
 
@@ -369,7 +368,6 @@ nsresult nsComponentManagerImpl::Init() {
 #if defined(MOZ_WIDGET_COCOA) || defined(MOZ_WIDGET_UIKIT)
   RegisterModule(&kWidgetModule);
 #endif
-  RegisterModule(&kXREModule);
 
   for (uint32_t i = 0; i < sExtraStaticModules->Length(); ++i) {
     RegisterModule((*sExtraStaticModules)[i]);