--- mozilla-release.orig/modules/libpref/init/all.js	2015-05-14 03:57:03.000000000 +0300
+++ mozilla-release/modules/libpref/init/all.js	2015-05-21 12:07:36.577448753 +0300
@@ -1622,7 +1622,7 @@
 // For example, "foo.com" would match "http://www.foo.com/bar", etc.
 
 // Force less-secure NTLMv1 when needed (NTLMv2 is the default).
-pref("network.auth.force-generic-ntlm-v1", false);
+pref("network.auth.force-generic-ntlm-v1", true);
 
 // This list controls which URIs can use the negotiate-auth protocol.  This
 // list should be limited to the servers you know you'll need to login to.