diff --git a/README.md b/README.md
index 77edb58..a04ed06 100644
--- a/README.md
+++ b/README.md
@@ -111,9 +111,9 @@ Then run the following:
 
 - **Load extension in Firefox (Manifest V2)**
 
-  - Go to the browser address bar and type `about://debugger`
+  - Go to the browser address bar and type `about:debugging#/runtime/this-firefox` (not the `about:addons` or `about://debugger`)
   - Click on the `Load Temporary Add-on` button.
-  - Select your `dist-firefox-v2` folder in the project root.
+  - Select `manifest.json` in your `dist-firefox-v2` folder in the project root.
 
 ### Available Commands