diff --git a/browser/base/content/browser-sets.js b/browser/base/content/browser-sets.js
index d9ab2ad00b862d56ea7aa8e2469d050d8df7f5dc..2efb25ff9cfd3a224724fffadfa0aee693ddf47d 100644
--- a/browser/base/content/browser-sets.js
+++ b/browser/base/content/browser-sets.js
@@ -272,7 +272,7 @@ document.addEventListener(
         }
       });
 
-    document.getElementById("mainKeyset").addEventListener("command", event => {
+    document.getElementById("zenKeyset").addEventListener("command", event => {
       const SIDEBAR_REVAMP_PREF = "sidebar.revamp";
       const SIDEBAR_REVAMP_ENABLED = Services.prefs.getBoolPref(
         SIDEBAR_REVAMP_PREF,
@@ -310,6 +310,8 @@ document.addEventListener(
               panel: SidebarController.currentID,
               opened: SidebarController._state.launcherExpanded,
             });
+          } else {
+            SidebarController.toggle();
           }
           break;
         case "key_gotoHistory":
