--- a/firefox-devel.rst	Tue Oct 30 17:12:20 2012 +0200
+++ b/firefox-devel.rst	Tue Oct 30 19:27:48 2012 +0200
@@ -9,6 +9,9 @@
 Useful Firefox add-ons for developers.
 ======================================
 
+  https://addons.mozilla.org/en-US/firefox/collections/mozilla/webdeveloper/
+                Plug-ins for Web-development.
+
 Firebug.
 --------
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/oracle.rst	Tue Oct 30 19:27:48 2012 +0200
@@ -0,0 +1,29 @@
+.. -*- coding: utf-8; -*-
+.. include:: HEADER.rst
+
+==================
+ Oracle database.
+==================
+.. contents::
+
+Oracle database development environment.
+========================================
+
+  http://en.wikipedia.org/wiki/Oracle_SQL_Developer
+                Integrated development environment (IDE) for working with
+                SQL/PLSql in Oracle databases.
+  http://en.wikipedia.org/wiki/SQL*Plus
+                An Oracle database client that can run SQL and PL/SQL commands
+                and display their results.
+  http://en.wikipedia.org/wiki/Oracle_Forms
+                Is a software product for creating screens that interact with an
+                Oracle database. It has an IDE including an object navigator,
+                property sheet and code editor that uses PL/SQL.
+  http://en.wikipedia.org/wiki/Oracle_JDeveloper
+                JDeveloper is a freeware IDE supplied by Oracle Corporation. It
+                offers features for development in Java, XML, SQL and PL/SQL,
+                HTML, JavaScript, BPEL and PHP.
+  http://en.wikipedia.org/wiki/Oracle_Reports
+                Oracle Reports is a tool for developing reports against data
+                stored in an Oracle database.
+