--- a/browser/base/content/test/urlbar/browser_urlbarFocusedCmdK.js
+++ b/browser/base/content/test/urlbar/browser_urlbarFocusedCmdK.js
@@ -1,11 +1,12 @@
 /* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 add_task(async function() {
   // Test that Ctrl/Cmd + K will focus the url bar
   let focusPromise = BrowserTestUtils.waitForEvent(gURLBar, "focus");
+  document.documentElement.focus();
   EventUtils.synthesizeKey("k", { accelKey: true });
   await focusPromise;
   Assert.equal(document.activeElement, gURLBar.inputField, "URL Bar should be focused");
 });