diff --git a/etc/firefox/policies/policies.json b/etc/firefox/policies/policies.json
index c0b2f381..86c3ab2c 100644
--- a/etc/firefox/policies/policies.json
+++ b/etc/firefox/policies/policies.json
@@ -210,6 +210,7 @@
       "URL": "about:mozilla"
     },
     "NetworkPrediction": false,
+    "NewTabPage": false,
     "OverrideFirstRunPage": "about:mozilla",
     "PDFjs": {
       "EnablePermissions": false,