diff --git a/README.md b/README.md
index 417e754e4..b2ebad6a3 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,44 @@ Default configuration can be found in the config.js file.
 See config.js for more info on configuration options.
 
 
+# Development
+
+## Google Chrome Extension
+When you need to compile a *Chrome Extension* of Copay, you only need to run:
+```
+$ sh chrome/build.sh
+```
+
+- The ZIP file is *chrome/copay-chrome-extension.zip*
+
+## Firefox Add-on
+System Requirements
+
+* Download [Add-on SDK](https://addons.mozilla.org/en-US/developers/builder)
+* Install it. [Mozilla Docs](https://developer.mozilla.org/en-US/Add-ons/SDK/Tutorials/Installation)
+
+Run
+
+```
+$ sh firefox/build.sh
+```
+
+- Copy the content of *firefox/firefox-addon* (lib, data, package.json) to your development path.
+- Compile the XPI file. [Mozilla Docs](https://developer.mozilla.org/en-US/Add-ons/SDK/Tutorials/Getting_started)
+
+##Web App
+The Web App is a clean version of Copay, only the neededs files (html, css, js)
+for run Copay locally or in your own server.
+
+In order to get the ZIP file of Copay, you just need to run:
+```
+$ sh webapp/build.sh
+```
+
+- The ZIP file is *webapp/download/copay.zip*
+- The *webapp/copay-webapp* is the unzipped version
+
+
 # About Copay
 
 General
diff --git a/chrome/README.md b/chrome/README.md
index 981137717..0eec88a19 100644
--- a/chrome/README.md
+++ b/chrome/README.md
@@ -1,4 +1,4 @@
-System Requirements
+Development
 
 * Just run:
 
@@ -6,4 +6,4 @@ System Requirements
 $ sh chrome/build.sh
 ```
 
-* The copay-chrome-extension.zip is into ./chrome folder
+* The ZIP file is *chrome/copay-chrome-extension.zip*
diff --git a/firefox/README.md b/firefox/README.md
index 06e602e8a..7a92f11e7 100644
--- a/firefox/README.md
+++ b/firefox/README.md
@@ -9,5 +9,5 @@ Run
 $ sh firefox/build.sh
 ```
 
-- Copy the content of firefox/firefox-addon (lib, data, package.json) to your development path.
+- Copy the content of *firefox/firefox-addon* (lib, data, package.json) to your development path.
 - Compile the XPI file [Mozilla Docs](https://developer.mozilla.org/en-US/Add-ons/SDK/Tutorials/Getting_started)