diff --git a/test/test.mjs b/test/test.mjs
index b2404cb42e312..8aac63e1a82c4 100644
--- a/test/test.mjs
+++ b/test/test.mjs
@@ -944,6 +944,8 @@ async function startBrowser({
       "accessibility.browsewithcaret": true,
       // Disable the newtabpage stuff.
       "browser.newtabpage.enabled": false,
+      // Disable network connections to Contile.
+      "browser.topsites.contile.enabled": false,
       ...extraPrefsFirefox,
     };
   }