diff --git a/codex-rs/core/config.schema.json b/codex-rs/core/config.schema.json
index c8640c514b..8ea56adb9c 100644
--- a/codex-rs/core/config.schema.json
+++ b/codex-rs/core/config.schema.json
@@ -373,6 +373,9 @@
             "browser_use": {
               "type": "boolean"
             },
+            "browser_use_external": {
+              "type": "boolean"
+            },
             "child_agents_md": {
               "type": "boolean"
             },
@@ -3376,6 +3379,9 @@
         "browser_use": {
           "type": "boolean"
         },
+        "browser_use_external": {
+          "type": "boolean"
+        },
         "child_agents_md": {
           "type": "boolean"
         },
diff --git a/codex-rs/features/src/lib.rs b/codex-rs/features/src/lib.rs
index e2f859c22f..6dda98d923 100644
--- a/codex-rs/features/src/lib.rs
+++ b/codex-rs/features/src/lib.rs
@@ -172,6 +172,10 @@ pub enum Feature {
     ///
     /// Requirements-only gate: this should be set from requirements, not user config.
     BrowserUse,
+    /// Allow Browser Use integration with external browsers.
+    ///
+    /// Requirements-only gate: this should be set from requirements, not user config.
+    BrowserUseExternal,
     /// Allow Codex Computer Use.
     ///
     /// Requirements-only gate: this should be set from requirements, not user config.
@@ -914,6 +918,12 @@ pub const FEATURES: &[FeatureSpec] = &[
         stage: Stage::Stable,
         default_enabled: true,
     },
+    FeatureSpec {
+        id: Feature::BrowserUseExternal,
+        key: "browser_use_external",
+        stage: Stage::Stable,
+        default_enabled: true,
+    },
     FeatureSpec {
         id: Feature::ComputerUse,
         key: "computer_use",
diff --git a/codex-rs/features/src/tests.rs b/codex-rs/features/src/tests.rs
index 0ed1d7ecc0..d1c0ae0c55 100644
--- a/codex-rs/features/src/tests.rs
+++ b/codex-rs/features/src/tests.rs
@@ -157,6 +157,13 @@ fn browser_controls_are_stable_and_enabled_by_default() {
     assert_eq!(Feature::BrowserUse.default_enabled(), true);
     assert_eq!(feature_for_key("browser_use"), Some(Feature::BrowserUse));
 
+    assert_eq!(Feature::BrowserUseExternal.stage(), Stage::Stable);
+    assert_eq!(Feature::BrowserUseExternal.default_enabled(), true);
+    assert_eq!(
+        feature_for_key("browser_use_external"),
+        Some(Feature::BrowserUseExternal)
+    );
+
     assert_eq!(Feature::ComputerUse.stage(), Stage::Stable);
     assert_eq!(Feature::ComputerUse.default_enabled(), true);
     assert_eq!(feature_for_key("computer_use"), Some(Feature::ComputerUse));