diff --git a/playwright.config.js b/playwright.config.js
index af67717a2de9..d5201ca0a0be 100644
--- a/playwright.config.js
+++ b/playwright.config.js
@@ -64,12 +64,13 @@ export default {
       },
     },
 
-    {
-      name: 'firefox',
-      use: {
-        ...devices['Desktop Firefox'],
-      },
-    },
+    // disabled because of https://github.com/go-gitea/gitea/issues/21355
+    // {
+    //   name: 'firefox',
+    //   use: {
+    //     ...devices['Desktop Firefox'],
+    //   },
+    // },
 
     {
       name: 'webkit',