typo

user.js

@@ -457,7 +457,7 @@ user_pref("browser.send_pings.require_same_host", true);
 user_pref("network.protocol-handler.external.ms-windows-store", false);
 /* 0608: disable predictor / prefetching [FF48+] ***/
 user_pref("network.predictor.enable-prefetch", false);
-/* 0609: disable Network Connectivity Services [FF65+] ***/
+/* 0609: disable Network Connectivity Service [FF65+] ***/
 pref("network.connectivity-service.enabled", false);
 
 /*** [SECTION 0700]: HTTP* / TCP/IP / DNS / PROXY / SOCKS etc ***/