description: disable third-party cookies by default
author: Chad Miller <chad.miller@canonical.com>

--- a/components/content_settings/core/browser/cookie_settings.cc
+++ b/components/content_settings/core/browser/cookie_settings.cc
@@ -50,7 +50,7 @@ void CookieSettings::GetCookieSettings(
 void CookieSettings::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterBooleanPref(
-      prefs::kBlockThirdPartyCookies, false,
+      prefs::kBlockThirdPartyCookies, true,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
 }