diff --git a/tests/page/page-evaluate.spec.ts b/tests/page/page-evaluate.spec.ts
index c5e41cfae7..9b575d001c 100644
--- a/tests/page/page-evaluate.spec.ts
+++ b/tests/page/page-evaluate.spec.ts
@@ -548,7 +548,7 @@ it('should not use toJSON when evaluating', async ({ page }) => {
   expect(result).toEqual({ data: 'data', toJSON: {} });
 });
 
-it('should not use Array.prototype.toJSON when evaluating', async ({ page, browserName }) => {
+it('should not use Array.prototype.toJSON when evaluating', async ({ page }) => {
   const result = await page.evaluate(() => {
     (Array.prototype as any).toJSON = () => 'busted';
     return [1, 2, 3];
@@ -556,6 +556,13 @@ it('should not use Array.prototype.toJSON when evaluating', async ({ page, brows
   expect(result).toEqual([1,2,3]);
 });
 
+it('should not add a toJSON property to newly created Arrays after evaluation', async ({ page, browserName }) => {
+  it.fixme(browserName === 'firefox')
+  await page.evaluate(() => []);
+  const hasToJSONProperty = await page.evaluate(() => "toJSON" in []);
+  expect(hasToJSONProperty).toEqual(false);
+});
+
 it('should not use toJSON in jsonValue', async ({ page }) => {
   const resultHandle = await page.evaluateHandle(() => ({ toJSON: () => 'string', data: 'data' }));
   expect(await resultHandle.jsonValue()).toEqual({ data: 'data', toJSON: {} });