diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index bb8adf9fe8..b561912dcd 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -3742,6 +3742,17 @@
       <key>Value</key>
       <integer>1</integer>
     </map>
+    <key>BrowserWebSecurityDisabled</key>
+    <map>
+      <key>Comment</key>
+      <string>Disable web security features in the built-in Web browser?</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>ChatBarCustomWidth</key>
     <map>
       <key>Comment</key>