diff --git a/.storybook/__mocks__/webextension-polyfill.js b/.storybook/__mocks__/webextension-polyfill.js
deleted file mode 100644
index 011bdd867381..000000000000
--- a/.storybook/__mocks__/webextension-polyfill.js
+++ /dev/null
@@ -1,8 +0,0 @@
-module.exports = {
-  runtime: {
-    getManifest: () => {
-      return { manifest_version: 2 };
-    }
-  },
-};
-  
\ No newline at end of file
diff --git a/.storybook/main.js b/.storybook/main.js
index 5f97aab1d6f6..91b589bf1118 100644
--- a/.storybook/main.js
+++ b/.storybook/main.js
@@ -40,7 +40,7 @@ module.exports = {
       __filename: true,
     };
     config.resolve.alias['webextension-polyfill'] = require.resolve(
-      './__mocks__/webextension-polyfill.js',
+      '../ui/__mocks__/webextension-polyfill.js',
     );
     config.resolve.fallback = {
       child_process: false,