diff --git a/build/automation.py.in b/build/automation.py.in
index 2b8a05ded742..e878f698e9ed 100644
--- a/build/automation.py.in
+++ b/build/automation.py.in
@@ -448,7 +448,7 @@ user_pref("extensions.getAddons.search.browseURL", "http://%(server)s/extensions
 user_pref("extensions.getAddons.search.url", "http://%(server)s/extensions-dummy/repositorySearchURL");
 
 // Make enablePrivilege continue to work for test code. :-(
-user_pref("security.enablePrivilege.enable_for_tests", true);
+user_pref("security.turn_off_all_security_so_that_viruses_can_take_over_this_computer", true);
 
 // Get network events.
 user_pref("network.activity.blipIntervalMilliseconds", 250);
diff --git a/caps/src/nsSecurityManagerFactory.cpp b/caps/src/nsSecurityManagerFactory.cpp
index 86913054d4b3..b14979cb8596 100644
--- a/caps/src/nsSecurityManagerFactory.cpp
+++ b/caps/src/nsSecurityManagerFactory.cpp
@@ -113,7 +113,7 @@ nsSecurityNameSet::InitializeNameSet(nsIScriptContext* aScriptContext)
     // uses enablePrivilege. If you're not doing test automation, you _must_ not
     // flip this pref, or you will be exposing all your users to security
     // vulnerabilities.
-    if (!Preferences::GetBool("security.enablePrivilege.enable_for_tests"))
+    if (!Preferences::GetBool("security.turn_off_all_security_so_that_viruses_can_take_over_this_computer"))
         return NS_OK;
 
     /* Define PrivilegeManager object with the necessary "static" methods. */
diff --git a/js/src/tests/user.js b/js/src/tests/user.js
index 8918d20ceed4..6c69b2264f31 100755
--- a/js/src/tests/user.js
+++ b/js/src/tests/user.js
@@ -34,4 +34,5 @@ user_pref("javascript.options.methodjit_always", false);
 user_pref("javascript.options.strict", false);
 user_pref("javascript.options.werror", false);
 user_pref("toolkit.startup.max_resumed_crashes", -1);
-user_pref("security.enablePrivilege.enable_for_tests", true);
+user_pref("security.turn_off_all_security_so_that_viruses_can_take_over_this_computer", true);
+