FireShot

Take screen captures from Firefox

Buffer

Share on social networks the web contents you visit

Bookmark Duplicate Detector

Eliminate you duplicate bookmarks from your favorite browser

TV-FOX

More than 2,500 TV channels live from Firefox

User Agent Switcher

Tool to switch the user agent used

WebMail for Thunderbird

Use Thunderbird to manage your webmail

Adblock Plus for Firefox

Block Internet adverts

IE Tab

View websites as if you visited them with Internet Explorer

Privacy Badger

Block adverts that violate your privacy

Autofill Forms

Fill in forms automatically

Foxtana Pro

Have Cortana search Firefox

Ank Pixiv Tool

Download manga images from Pixiv

Sparky Alexa Toolbar

Have Alexa's information in your browser

Web Developer

Toolbar aimed at web programming

Shockwave Player

The add-on to play multimedia Flash contents in 3D

Lightning

Thunderbird add-on that adds personal organizer functions to the application

MIT App Inventor 2

Develop your own Android applications without any trouble

Visual Studio 2012

The best development environment for Windows

Visual Basic 2013 Express

Learn how to develop applications with Visual Basic

Arduino IDE

The revolution to domestic electronics

Visual Studio 2017

Microsoft's IDE

JCreator

The most powerful Java integrated development environment

Embarcadero Dev-C++

Excellent free IDE for C/C++

Visual Studio 2013

The new development environment by Microsoft

Java JDK

Tools to develop Java applications

Visual Basic 6 SP6

Update Visual Basic 6 with the latest Service Pack

Android Studio

Google's own IDE to develop Android apps

Visual Studio 2008

Free programming software for beginners

Python

One of the most practical programing languages

Visual Studio 2010

Develop software for Windows and web applications

Visual Studio 2015

Your favorite IDE adapted to modern times