diff -r 000000000000 -r 6474c204b198 dom/locales/en-US/chrome/netErrorApp.dtd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/locales/en-US/chrome/netErrorApp.dtd	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,13 @@
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!-- Error messages that are likely to be overridden by applications go in this
+     file, all messages that likely don't need to tie into app-specific UI
+     should go into netError.dtd -->
+
+<!ENTITY securityOverride.linkText "Or you can add an exception…">
+<!ENTITY securityOverride.warningContent "
+<p>You should not add an exception if you are using an internet connection that you do not trust completely or if you are not used to seeing a warning for this server.</p>
+<p>If you still wish to add an exception for this site, you can do so in your advanced encryption settings.</p>
+">