diff --git a/shells/browser/shared/deploy.firefox.html b/shells/browser/shared/deploy.firefox.html
index bc899c5f01..57051bf586 100644
--- a/shells/browser/shared/deploy.firefox.html
+++ b/shells/browser/shared/deploy.firefox.html
@@ -1,6 +1,7 @@
 <ol>
   <li><a href="packed.zip">download extension</a></li>
+  <li>Extract/unzip</li>
   <li>Visit <code>about:debugging</code></li>
   <li>Click "Load Temporary Add-on"</li>
-  <li>Select extension</li>
+  <li>Select the <code>manifest.json</code></li>
 </ol>
\ No newline at end of file