Octotree is a Firefox extension designed to improve the GitHub experience for developers by providing an IDE-like code tree. This tool enhances code review and exploration with features such as folder and file search, support for dark mode, and the ability to bookmark repositories, files, issues, and pull requests. It is optimized for high performance, making it suitable for working with repositories of any size, including private ones.

The subscription-based model offers additional pro features, including customizable file icon themes, code font settings, unlimited bookmarks, and the ability to review pull requests directly. Users can also dock the sidebar in various positions and manage multiple GitHub accounts, including support for GitHub Enterprise. Importantly, Octotree maintains a strong privacy policy, ensuring that user data is not collected or shared.