diff -r 570ac9aab8b2 -r 611b2d6efdfe components/desktop/firefox/patches/firefox-00-locale.patch
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/desktop/firefox/patches/firefox-00-locale.patch	Tue Mar 01 12:56:53 2016 -0800
@@ -0,0 +1,14 @@
+Matches the OS locale. We need to determine if this patch should be sent
+upstream. 
+
+--- mozilla-esr38/modules/libpref/init/all.js.orig      2015-02-18 16:39:16.189950136 +0530
++++ mozilla-esr38/modules/libpref/init/all.js   2015-02-18 16:40:56.002524458 +0530
+@@ -1461,7 +1461,7 @@ pref("intl.charset.detector",
+ pref("intl.charset.fallback.override",      "");
+ pref("intl.charset.fallback.tld",           true);
+ pref("intl.ellipsis",                       "chrome://global-platform/locale/intl.properties");
+-pref("intl.locale.matchOS",                 false);
++pref("intl.locale.matchOS",                 true);
+ // fallback charset list for Unicode conversion (converting from Unicode)
+ // currently used for mail send only to handle symbol characters (e.g Euro, trademark, smartquotes)
+ // for ISO-8859-1