diff --git a/packages/apps-config/src/extensions/index.ts b/packages/apps-config/src/extensions/index.ts
index dd14cb74d5..02fc5885ee 100644
--- a/packages/apps-config/src/extensions/index.ts
+++ b/packages/apps-config/src/extensions/index.ts
@@ -1,7 +1,6 @@
 // Copyright 2017-2022 @polkadot/apps-config authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
-// it would have been really good to import this from detect-browser, however... not exported
 type Browser = 'chrome' | 'firefox';
 
 interface Extension {
@@ -10,21 +9,30 @@ interface Extension {
   name: string;
 }
 
+interface Known {
+  all: Record<Browser, string>;
+  desc: string;
+  name: string;
+}
+
 // The list of known extensions including the links to tem on the store. This is used when
 // no extensions are actually available, promoting the user to install one or more
+// (Any known extension can and should be added here)
 
-export const availableExtensions: Record<Browser, Extension[]> = [
+const known: Known[] = [
   {
-    browsers: {
+    all: {
       chrome: 'https://chrome.google.com/webstore/detail/polkadot%7Bjs%7D-extension/mopnmbcafieddcagagdcbnhejhlodfdd',
       firefox: 'https://addons.mozilla.org/en-US/firefox/addon/polkadot-js-extension/'
     },
     desc: 'Basic account injection and signer',
     name: 'polkadot-js extension'
   }
-].reduce((available: Record<Browser, Extension[]>, { browsers, desc, name }): Record<Browser, Extension[]> => {
-  Object.entries(browsers).forEach(([browser, link]): void => {
-    available[browser as 'chrome'].push({ desc, link, name });
+];
+
+export const availableExtensions = known.reduce<Record<Browser, Extension[]>>((available, { all, desc, name }) => {
+  Object.entries(all).forEach(([browser, link]): void => {
+    available[browser as Browser].push({ desc, link, name });
   });
 
   return available;