Focus URL bar on startup

src/browser/base/content/ZenStartup.mjs

@@ -3,6 +3,7 @@ var ZenStartup = {
   init() {
     this._changeSidebarLocation();
     this._zenInitBrowserLayout();
+    this._focusSearchBar();
   },
 
   _zenInitBrowserLayout() {
@@ -101,6 +102,10 @@ var ZenStartup = {
     const titlebar = document.getElementById("navigator-toolbox");
     titlebar.insertAdjacentElement("afterend", splitter);
   },
+
+  _focusSearchBar() {
+    gURLBar.focus();
+  },
 };
 
 ZenStartup.init();