diff --git a/shell/browser/extensions/electron_extensions_browser_client.cc b/shell/browser/extensions/electron_extensions_browser_client.cc
index 222e80d582..793a9f32bd 100644
--- a/shell/browser/extensions/electron_extensions_browser_client.cc
+++ b/shell/browser/extensions/electron_extensions_browser_client.cc
@@ -373,6 +373,12 @@ void ElectronExtensionsBrowserClient::SetAPIClientForTest(
   api_client_.reset(api_client);
 }
 
+void ElectronExtensionsBrowserClient::CreateExtensionWebContentsObserver(
+    content::WebContents* web_contents) {
+  extensions::ElectronExtensionWebContentsObserver::CreateForWebContents(
+      web_contents);
+}
+
 extensions::ExtensionWebContentsObserver*
 ElectronExtensionsBrowserClient::GetExtensionWebContentsObserver(
     content::WebContents* web_contents) {
diff --git a/shell/browser/extensions/electron_extensions_browser_client.h b/shell/browser/extensions/electron_extensions_browser_client.h
index 9841872f02..64c9592fc7 100644
--- a/shell/browser/extensions/electron_extensions_browser_client.h
+++ b/shell/browser/extensions/electron_extensions_browser_client.h
@@ -137,6 +137,8 @@ class ElectronExtensionsBrowserClient
   extensions::ExtensionCache* GetExtensionCache() override;
   bool IsBackgroundUpdateAllowed() override;
   bool IsMinBrowserVersionSupported(const std::string& min_version) override;
+  void CreateExtensionWebContentsObserver(
+      content::WebContents* web_contents) override;
   extensions::ExtensionWebContentsObserver* GetExtensionWebContentsObserver(
       content::WebContents* web_contents) override;
   extensions::KioskDelegate* GetKioskDelegate() override;