diff --git a/lib/src/GeckoContentHandler.cpp b/lib/src/GeckoContentHandler.cpp
index 39031852..8b6c9fb6 100644
--- a/lib/src/GeckoContentHandler.cpp
+++ b/lib/src/GeckoContentHandler.cpp
@@ -53,7 +53,7 @@ GeckoContentHandler::PromptForSaveToFile (nsIHelperAppLauncher *aLauncher,
 
 	NS_UTF16ToCString(nsString(aDefaultFile), NS_CSTRING_ENCODING_UTF8, defaultFile);
 
-	nsCOMPtr <nsILocalFile> destFile(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID));
+	nsCOMPtr <nsILocalFile> destFile(do_CreateInstance("@mozilla.org/file/local;1"));
 	NS_ENSURE_TRUE(destFile, NS_ERROR_FAILURE);
 
 	const char * suggested = defaultFile.get();
diff --git a/lib/src/sugar-browser.cpp b/lib/src/sugar-browser.cpp
index 8bf5878f..a8304fd0 100644
--- a/lib/src/sugar-browser.cpp
+++ b/lib/src/sugar-browser.cpp
@@ -519,7 +519,7 @@ sugar_browser_save_uri(SugarBrowser *browser,
     rv = NewURI(uri, getter_AddRefs(sourceURI));
     NS_ENSURE_SUCCESS(rv, FALSE);
 
-    nsCOMPtr<nsILocalFile> destFile = do_CreateInstance(NS_LOCAL_FILE_CONTRACTID);
+    nsCOMPtr<nsILocalFile> destFile = do_CreateInstance("@mozilla.org/file/local;1");
     NS_ENSURE_TRUE(destFile, FALSE);
 
     destFile->InitWithNativePath(nsCString(filename));
@@ -550,7 +550,7 @@ sugar_browser_save_document(SugarBrowser *browser,
 
     nsCString cFile(filename);
 
-    nsCOMPtr<nsILocalFile> destFile = do_CreateInstance(NS_LOCAL_FILE_CONTRACTID);
+    nsCOMPtr<nsILocalFile> destFile = do_CreateInstance("@mozilla.org/file/local;1");
     NS_ENSURE_TRUE(destFile, FALSE);
 
     destFile->InitWithNativePath(cFile);
@@ -563,7 +563,7 @@ sugar_browser_save_document(SugarBrowser *browser,
     g_string_append (path, " Files");
 
     nsCOMPtr<nsILocalFile> filesFolder;    
-    filesFolder = do_CreateInstance (NS_LOCAL_FILE_CONTRACTID);
+    filesFolder = do_CreateInstance ("@mozilla.org/file/local;1");
     filesFolder->InitWithNativePath (nsCString(path->str));
 
     g_string_free (path, TRUE);
diff --git a/tools/build-snapshot.sh b/tools/build-snapshot.sh
index 8d46550a..13aaf82c 100755
--- a/tools/build-snapshot.sh
+++ b/tools/build-snapshot.sh
@@ -1,6 +1,6 @@
 VERSION=0.63
 DATE=`date +%Y%m%d`
-RELEASE=2.47
+RELEASE=2.49
 TARBALL=sugar-$VERSION-$RELEASE.${DATE}git.tar.bz2
 
 rm sugar-$VERSION.tar.bz2