diff --git a/accessible/tests/browser/e10s/browser_caching_states.js b/accessible/tests/browser/e10s/browser_caching_states.js
index ffa672246300..2d7a8141670a 100644
--- a/accessible/tests/browser/e10s/browser_caching_states.js
+++ b/accessible/tests/browser/e10s/browser_caching_states.js
@@ -312,7 +312,10 @@ addAccessibleTask(
  * Test caching of the editable state.
  */
 addAccessibleTask(
-  `<div id="div" contenteditable><p id="p">hello</p></div>`,
+  `
+<div id="div" contenteditable><p id="p">hello</p></div>
+<input id="input">
+  `,
   async function (browser, docAcc) {
     const div = findAccessibleChildByID(docAcc, "div");
     const p = findAccessibleChildByID(docAcc, "p");
@@ -382,6 +385,20 @@ addAccessibleTask(
     });
     await stateChanged;
     testStates(docAcc, STATE_READONLY, 0, 0, EXT_STATE_EDITABLE);
+
+    const input = findAccessibleChildByID(docAcc, "input");
+    testStates(input, 0, EXT_STATE_EDITABLE, STATE_UNAVAILABLE, 0);
+    info("Setting disabled on input");
+    stateChanged = waitForEvents({
+      expected: [stateChangeEventArgs(input, STATE_UNAVAILABLE, true)],
+      unexpected: [
+        stateChangeEventArgs(input, EXT_STATE_EDITABLE, false, true),
+      ],
+    });
+    await invokeContentTask(browser, [], () => {
+      content.document.getElementById("input").disabled = true;
+    });
+    await stateChanged;
   },
   { topLevel: true, iframe: true, remoteIframe: true, chrome: true }
 );