desktop/src/browser/components/urlbar/content/UrlbarChildController-mjs.patch

diff --git a/browser/components/urlbar/content/UrlbarChildController.mjs b/browser/components/urlbar/content/UrlbarChildController.mjs
index a17a4de079b69d2818388b33a2c1746cc6148c73..4fee63a22919972af08716db2d2de1c7549ff100 100644
--- a/browser/components/urlbar/content/UrlbarChildController.mjs
+++ b/browser/components/urlbar/content/UrlbarChildController.mjs
@@ -438,7 +438,6 @@ export class UrlbarChildController {
     const isMac = AppConstants.platform == "macosx";
     // Handle readline/emacs-style navigation bindings on Mac.
     if (
-      isMac &&
       this.view.isOpen &&
       event.ctrlKey &&
       (event.key == "n" || event.key == "p")
@@ -630,6 +629,8 @@ export class UrlbarChildController {
             });
           }
           event.preventDefault();
+        } else if (!this.input.value && !(event.ctrlKey || event.altKey || event.shiftKey)) {
+          this.window.gZenUIManager.enableCommandsMode(event);
         }
         break;
       }
@@ -934,6 +935,10 @@ export class UrlbarChildController {
       }
       reuseEmpty = true;
     }
+    if (this.#input.hasAttribute?.("zen-newtab")) {
+      where = "tab";
+      reuseEmpty = true;
+    }
     // The browser window exists only in chrome; a content-process input has no
     // tab to reuse, so `gBrowser` is absent and the reuse is skipped.
     if (
@@ -943,6 +948,10 @@ export class UrlbarChildController {
     ) {
       where = "current";
     }
+    if (this.window.gBrowser?.selectedTab.hasAttribute("zen-empty-tab")) {
+      // Always open in a new tab if the current tab is our empty tab.
+      return "tab";
+    }
     return where;
   }