diff --git a/browsers.json b/browsers.json
index a73e5a8ea5..c714b8cbda 100644
--- a/browsers.json
+++ b/browsers.json
@@ -8,7 +8,7 @@
     },
     {
       "name": "firefox",
-      "revision": "1202",
+      "revision": "1203",
       "download": true
     },
     {
diff --git a/test/page-network-idle.spec.ts b/test/page-network-idle.spec.ts
index c273aebb29..dfc629110e 100644
--- a/test/page-network-idle.spec.ts
+++ b/test/page-network-idle.spec.ts
@@ -138,9 +138,7 @@ it('should wait for networkidle from the child frame', async ({page, server}) =>
   });
 });
 
-it('should wait for networkidle from the popup', (test, { browserName }) => {
-  test.fixme(browserName === 'firefox', 'Times out due to inactive layout / raf throttling');
-}, async ({page, server}) => {
+it('should wait for networkidle from the popup', async ({page, server}) => {
   await page.goto(server.EMPTY_PAGE);
   await page.setContent(`
     <button id=box1 onclick="window.open('./popup/popup.html')">Button1</button>