Mozilla Support is a community of volunteers and employees who provide support to users around the world on Mozilla's products such as Firefox, Thunderbird, and Firefox OS. Volunteers can help quality test applications, contribute code if they have skills in languages like C++, JavaScript, Python, or C, help spread awareness of Mozilla's work to build a better internet, translate products into other languages, improve websites, create add-ons, help with visual design and communications, improve documentation, or teach others about how the web works through Mozilla's Webmaker project. Contributions from volunteers reach millions of worldwide users.