--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -300,17 +300,17 @@ pref("browser.urlbar.clickSelectsAll", t
 pref("browser.urlbar.doubleClickSelectsAll", true);
 #else
 pref("browser.urlbar.doubleClickSelectsAll", false);
 #endif
 
 // Control autoFill behavior
 pref("browser.urlbar.autoFill", true);
 pref("browser.urlbar.autoFill.typed", true);
-pref("browser.urlbar.speculativeConnect.enabled", true);
+pref("browser.urlbar.speculativeConnect.enabled", false);
 
 // 0: Match anywhere (e.g., middle of words)
 // 1: Match on word boundaries and then try matching anywhere
 // 2: Match only on word boundaries (e.g., after / or .)
 // 3: Match at the beginning of the url or title
 pref("browser.urlbar.matchBehavior", 1);
 pref("browser.urlbar.filter.javascript", true);