OMG!!

user.js

@@ -1625,7 +1625,7 @@ user_pref("_user.js.parrot", "5000 syntax error: this is an ex-parrot!");
    // user_pref("general.autoScroll", false); // middle-click enabling auto-scrolling [WINDOWS] [MAC]
    // user_pref("ui.key.menuAccessKey", 0); // disable alt key toggling the menu bar [RESTART]
    // user_pref("view_source.tab", false); // view "page/selection source" in a new window [FF68+, FF59 and under]
-/* UX: FEATURES: disable and hide the icons and menus ***/
+/* UX FEATURES: disable and hide the icons and menus ***/
    // user_pref("browser.messaging-system.whatsNewPanel.enabled", false); // What's New [FF69+]
    // user_pref("extensions.pocket.enabled", false); // Pocket Account [FF46+]
    // user_pref("identity.fxaccounts.enabled", false); // Firefox Accounts & Sync [FF60+] [RESTART]