diff --git a/mozilla/chrome/public/nsIChromeRegistry.idl b/mozilla/chrome/public/nsIChromeRegistry.idl
index ef71efeb2fd..df35a87ce4e 100644
--- a/mozilla/chrome/public/nsIChromeRegistry.idl
+++ b/mozilla/chrome/public/nsIChromeRegistry.idl
@@ -77,6 +77,15 @@ interface nsIChromeRegistry : nsISupports
   void deselectSkinForPackage(in wstring skinName, in wstring packageName, in boolean useProfile);
 	void deselectLocaleForPackage(in wstring localeName, in wstring packageName, in boolean useProfile); 
 
+  /* Installation APIs */
+  void installSkin(in nsIURI baseURL, in boolean useProfile);
+  void uninstallSkin(in wstring skinName, in boolean useProfile);
+
+  void installLocale(in nsIURI baseURL, in boolean useProfile);
+  void uninstallLocale(in wstring localeName, in boolean useProfile);
+
+  void installPackage(in nsIURI baseURL, in boolean useProfile);
+  void uninstallPackage(in wstring packageName, in boolean useProfile);
 };
 
 
diff --git a/mozilla/chrome/src/nsChromeRegistry.cpp b/mozilla/chrome/src/nsChromeRegistry.cpp
index 68a9bf6161a..c3a8a0d237f 100644
--- a/mozilla/chrome/src/nsChromeRegistry.cpp
+++ b/mozilla/chrome/src/nsChromeRegistry.cpp
@@ -1142,6 +1142,42 @@ NS_IMETHODIMP nsChromeRegistry::SelectProviderForPackage(const PRUnichar *aTheme
   return NS_OK;
 }
    
+NS_IMETHODIMP nsChromeRegistry::InstallSkin(nsIURI* aBaseURL, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::InstallLocale(nsIURI* aBaseURL, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::InstallPackage(nsIURI* aBaseURL, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::UninstallSkin(const PRUnichar* aSkinName, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::UninstallLocale(const PRUnichar* aLocaleName, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::UninstallPackage(const PRUnichar* aPackageName, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
 NS_IMETHODIMP
 nsChromeRegistry::GetProfileRoot(nsCAutoString& aFileURL) 
 { 
diff --git a/mozilla/rdf/chrome/public/nsIChromeRegistry.idl b/mozilla/rdf/chrome/public/nsIChromeRegistry.idl
index ef71efeb2fd..df35a87ce4e 100644
--- a/mozilla/rdf/chrome/public/nsIChromeRegistry.idl
+++ b/mozilla/rdf/chrome/public/nsIChromeRegistry.idl
@@ -77,6 +77,15 @@ interface nsIChromeRegistry : nsISupports
   void deselectSkinForPackage(in wstring skinName, in wstring packageName, in boolean useProfile);
 	void deselectLocaleForPackage(in wstring localeName, in wstring packageName, in boolean useProfile); 
 
+  /* Installation APIs */
+  void installSkin(in nsIURI baseURL, in boolean useProfile);
+  void uninstallSkin(in wstring skinName, in boolean useProfile);
+
+  void installLocale(in nsIURI baseURL, in boolean useProfile);
+  void uninstallLocale(in wstring localeName, in boolean useProfile);
+
+  void installPackage(in nsIURI baseURL, in boolean useProfile);
+  void uninstallPackage(in wstring packageName, in boolean useProfile);
 };
 
 
diff --git a/mozilla/rdf/chrome/src/nsChromeRegistry.cpp b/mozilla/rdf/chrome/src/nsChromeRegistry.cpp
index 68a9bf6161a..c3a8a0d237f 100644
--- a/mozilla/rdf/chrome/src/nsChromeRegistry.cpp
+++ b/mozilla/rdf/chrome/src/nsChromeRegistry.cpp
@@ -1142,6 +1142,42 @@ NS_IMETHODIMP nsChromeRegistry::SelectProviderForPackage(const PRUnichar *aTheme
   return NS_OK;
 }
    
+NS_IMETHODIMP nsChromeRegistry::InstallSkin(nsIURI* aBaseURL, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::InstallLocale(nsIURI* aBaseURL, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::InstallPackage(nsIURI* aBaseURL, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::UninstallSkin(const PRUnichar* aSkinName, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::UninstallLocale(const PRUnichar* aLocaleName, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsChromeRegistry::UninstallPackage(const PRUnichar* aPackageName, PRBool aUseProfile)
+{
+  NS_ERROR("Write me!\n");
+  return NS_OK;
+}
+
 NS_IMETHODIMP
 nsChromeRegistry::GetProfileRoot(nsCAutoString& aFileURL) 
 {