RedQueryBuilder
RedQueryBuilder is a free web-based application designed to fill the gap between a full blown query language and a hand coded "quick search."

Report bugs and issues
Report bugs and issues is a Firefox extension that places a button on the navigation toolbar, allowing users to quickly report errors for debugging.

Raring Icon Theme (OEM)
Raring Icon Theme (OEM) is a free package that contains an icon theme based on the original Ubuntu 13.04 Raring Ringtail icon theme, but for Ubuntu ...

Rasamalai
Rasamalai is a simple Firefox extension that only provides pictures and information about how to prepare an Indian food called Ras Malai.

Rihanna Diva
Rihanna Diva is an Opera theme designed especially for serious fans of Rihanna, a Barbadian recording artist, fashion designer and actress.

Right Encoding for Thunderbird
Right Encoding allows you to select the Character Encoding from the context menu.

Right Encoding for Firefox
Right Encoding allows you to select the Character Encoding from the context menu.

Rikulo CouchClient
Rikulo CouchClient is an open source client SDK for Rikulo, specially designed to enable access to the NoSQL document database Couchbase in the Dart language.

read feed - Juan Manuel Borges Cano
read feed is an open source command-line software that can read feeds from any source, by using the feed of a website.

Real Neon
Real Neon is an open source skin for the Cairo-Clock screenlet. It was inspired by neon tubes.

Rainbow Dash - Shujin
Rainbow Dash is a free theme for the Cinnamon desktop environment, featuring a pony over the colors of the rainbow. It is based on Rainbow ...

Ramdisk - Matei Cezar
Ramdisk is an open source graphical software that allows users to create a special partition for their RAM memory.

Reality
Reality is a free theme for the Cinnamon desktop environment, featuring the a color scheme that reassembles the look of real cinnamon.

Retweet with comment - amcereijo
Retweet with comment is a Firefox extension that implements a functionality for the Twitter website, allowing users to make a retweet with a comment.

Referrer Control
Referrer Control is a Firefox extension that places a button on the navigation toolbar, allowing users to control the HTTP request referrer.

Reddit Enhancement Suite - honestbleeps
Reddit Enhancement Suite is a Firefox extension that implements various useful features to the Reddit website, such as never ending navigation, inline image viewer, keyboard ...

RAM Tab
RAM Tab is a Firefox extension that places a button on the navigation toolbar, acting like a shortcut or launcher for the about:addons-memory extension.

Rien
Rien is a free theme designed especially for the Cinnamon desktop environment. It was crafted to be the default style for the Cinnamon open source ...

Rock N Roll Interactive Persona
Rock N Roll Interactive Persona is an awesome looking Firefox theme especially designed for true rock'n'roll fans. It features a multimedia sidebar for the latest ...

RokClock - Rok Strniša
RokClock is an open source graphical application written in Java and designed to helps users track the total time spent on a specific project.

Red Flag Linux
Red Flag Linux is an open source Linux operating system founded by Software Research Institute of the Chinese Academy of Sciences and NewMargin Venture Capital.

Reader for Firefox
Reader is a Firefox and SeaMonkey extension that adds a button on the Add-On bar, which will improve your web reading experience.

Reader for SeaMonkey
Reader is a SeaMonkey and Firefox extension that adds a button on the Add-On bar, which will improve your web reading experience.

Rollercoaster Creator for Opera
Rollercoaster Creator is an Opera extension that lets users create their own roller coaster, simply by drawing with their mouse.