1 files changed, 16 insertions, 0 deletions
diff --git a/dom/tests/browser/browser_autofocus_preference.js b/dom/tests/browser/browser_autofocus_preference.js
new file mode 100644
index 0000000000..8fdb08ff98
--- /dev/null
+++ b/dom/tests/browser/browser_autofocus_preference.js
@@ -0,0 +1,16 @@
+add_task(async function () {
+  await SpecialPowers.pushPrefEnv({ set: [["browser.autofocus", false]] });
+
+  const url =
+    "data:text/html,<!DOCTYPE html><html><body><input autofocus><button autofocus></button><textarea autofocus></textarea><select autofocus></select></body></html>";
+
+  let loadedPromise = BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+  BrowserTestUtils.startLoadingURIString(gBrowser.selectedBrowser, url);
+  await loadedPromise;
+
+  await new Promise(resolve => executeSoon(resolve));
+
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
+    is(content.document.activeElement, content.document.body, "body focused");
+  });
+});