diff --git a/testing/profiles/prefs_general.js b/testing/profiles/prefs_general.js
index 3e2f1e30290..d303b38da4e 100644
--- a/testing/profiles/prefs_general.js
+++ b/testing/profiles/prefs_general.js
@@ -242,7 +242,6 @@ user_pref("browser.newtabpage.directory.ping", "");
 
 // Enable Loop
 user_pref("loop.enabled", true);
-user_pref("loop.throttled", false);
 
 // Ensure UITour won't hit the network
 user_pref("browser.uitour.pinnedTabUrl", "http://%(server)s/uitour-dummy/pinnedTab");