diff --git a/seed/seed.json b/seed/seed.json
index 85df24d3..92e0156d 100644
--- a/seed/seed.json
+++ b/seed/seed.json
@@ -2987,6 +2987,42 @@
                 ]
             },
             "name": "UndecryptablePasswords"
+        },
+        {
+            "experiments": [
+                {
+                    "feature_association": {
+                        "enable_feature": [
+                            "BraveWorkaroundNewWindowFlash"
+                        ]
+                    },
+                    "name": "Enabled",
+                    "probability_weight": 50
+                },
+                {
+                    "feature_association": {
+                        "disable_feature": [
+                            "BraveWorkaroundNewWindowFlash"
+                        ]
+                    },
+                    "name": "Disabled",
+                    "probability_weight": 50
+                },
+                {
+                    "name": "Default",
+                    "probability_weight": 0
+                }
+            ],
+            "filter": {
+                "min_version": "127.1.70.49",
+                "channel": [
+                    "NIGHTLY"
+                ],
+                "platform": [
+                    "WINDOWS"
+                ]
+            },
+            "name": "WorkaroundNewWindowFlash"
         }
     ],
     "version": "1"