diff --git a/user.js b/user.js
index 49a3cb8..019504d 100644
--- a/user.js
+++ b/user.js
@@ -427,6 +427,9 @@ user_pref("browser.urlbar.userMadeSearchSuggestionsChoice", true); // (FF41+)
 /* 0809: disable location bar suggesting "preloaded" top websites (FF54+)
  * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1211726 ***/
 user_pref("browser.urlbar.usepreloadedtopurls.enabled", false);
+/* 08010: disable location bar making speculative connections (FF56+)
+ * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1348275 ***/
+user_pref("browser.urlbar.speculativeConnect.enabled", false);
 /* 0850a: disable location bar autocomplete [controlled by 0850b]
    // user_pref("browser.urlbar.autocomplete.enabled", false);
 /* 0850b: disable location bar suggestion types [controls 0850a]