--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -2055,17 +2055,17 @@ pref("network.dir.format", 2);
 // <link rel="prefetch"> URLs).
 pref("network.prefetch-next", true);
 // enables the preloading (i.e., preloading of <link rel="preload"> URLs).
 pref("network.preload", true);
 
 // enables the predictive service
 pref("network.predictor.enabled", true);
 pref("network.predictor.enable-hover-on-ssl", false);
-pref("network.predictor.enable-prefetch", true);
+pref("network.predictor.enable-prefetch", false);
 pref("network.predictor.page-degradation.day", 0);
 pref("network.predictor.page-degradation.week", 5);
 pref("network.predictor.page-degradation.month", 10);
 pref("network.predictor.page-degradation.year", 25);
 pref("network.predictor.page-degradation.max", 50);
 pref("network.predictor.subresource-degradation.day", 1);
 pref("network.predictor.subresource-degradation.week", 10);
 pref("network.predictor.subresource-degradation.month", 25);