diff --git a/demos/playground/src/__tests__/e2e/Autocomplete.spec.mjs b/demos/playground/src/__tests__/e2e/Autocomplete.spec.mjs
index 70e58bb..c1d11ba 100644
--- a/demos/playground/src/__tests__/e2e/Autocomplete.spec.mjs
+++ b/demos/playground/src/__tests__/e2e/Autocomplete.spec.mjs
@@ -7,6 +7,7 @@
  */
 
 import {
+  IS_LINUX,
   assertHTML,
   focusEditor,
   html,
@@ -19,7 +20,13 @@ test.describe('Autocomplete', () => {
   test.beforeEach(({isCollab, page}) =>
     initialize({isAutocomplete: true, isCollab, page}),
   );
-  test('Can autocomplete a word', async ({page, isPlainText}) => {
+  test('Can autocomplete a word', async ({
+    page,
+    isPlainText,
+    isCollab,
+    browserName,
+  }) => {
+    test.fixme(isCollab && browserName === 'firefox' && IS_LINUX);
     await focusEditor(page);
     await page.keyboard.type('Sort by alpha');
     await sleep(500);