diff --git a/application/palemoon/app/profile/palemoon.js b/application/palemoon/app/profile/palemoon.js
index 3b048030b6..dac91154e4 100644
--- a/application/palemoon/app/profile/palemoon.js
+++ b/application/palemoon/app/profile/palemoon.js
@@ -195,7 +195,6 @@ pref("app.update.incompatible.mode", 0);
 //
 pref("extensions.update.enabled", true);
 pref("extensions.update.url", "https://@AM_DOMAIN@/?component=aus&@AM_AUS_ARGS@");
-pref("extensions.update.background.url", "https://@AM_DOMAIN@/?component=aus&@AM_AUS_ARGS@");
 pref("extensions.update.interval", 86400);  // Check for updates to Extensions and 
                                             // Themes every day
 // Non-symmetric (not shared by extensions) extension-specific [update] preferences