If you are new to the world of open source software and programming, there are a number of cool projects you can get involved with. Some of the projects you may have heard of include Mozilla’s Firefox Source Tree, VS Code, and TensorFlow. Mozilla’s Firefox Source Tree If you’re looking for a great open source project to start contributing to, Mozilla’s Firefox Source Tree is a good place to start. It contains dozens of projects, including the browser, performance tools, and more. The project is easy to contribute to, and you can learn a lot by participating in the community.