diff --git a/packages/taler-wallet-webextension/src/wallet/Application.tsx b/packages/taler-wallet-webextension/src/wallet/Application.tsx
index 2b03bb947..d960794e0 100644
--- a/packages/taler-wallet-webextension/src/wallet/Application.tsx
+++ b/packages/taler-wallet-webextension/src/wallet/Application.tsx
@@ -29,7 +29,7 @@ import { createHashHistory } from "history";
 import { ComponentChildren, Fragment, h, VNode } from "preact";
 import { route, Route, Router } from "preact-router";
 import { useEffect } from "preact/hooks";
-import { CurrentAlerts } from "../components/CurrentAlerts.js";
+import { AlertView, CurrentAlerts } from "../components/CurrentAlerts.js";
 import { LogoHeader } from "../components/LogoHeader.js";
 import PendingTransactions from "../components/PendingTransactions.js";
 import {
@@ -299,7 +299,17 @@ export function Application(): VNode {
               component={({ uri }: { uri: string }) => {
                 const path = getPathnameForTalerURI(uri);
                 if (!path) {
-                  return <Redirect to={Pages.balance} />;
+                  return (
+                    <CallToActionTemplate title={i18n.str`Taler URI handler`}>
+                      <AlertView
+                        alert={{
+                          type: "warning",
+                          message: i18n.str`Could not found a handler for the Taler URI`,
+                          description: i18n.str`The uri read in the path parameter is not valid: "${uri}"`,
+                        }}
+                      />
+                    </CallToActionTemplate>
+                  );
                 }
                 return <Redirect to={path} />;
               }}