--- a/firefox-devel.rst	Tue Nov 09 21:45:15 2010 +0200
+++ b/firefox-devel.rst	Tue Nov 09 21:45:42 2010 +0200
@@ -28,6 +28,13 @@
   https://addons.mozilla.org/firefox/addon/1843
                 download page
 
+* How build Firefox.
+
+  https://developer.mozilla.org/en/Build_Documentation
+                Build Instructions
+  https://developer.mozilla.org/en/Mozilla_Source_Code_%28Mercurial%29
+                Getting Mozilla Source Code Using Mercurial
+
 * Extension security.
 
   https://developer.mozilla.org/en/Security_best_practices_in_extensions