Tabby is a Firefox extension designed for managing multiple windows and tabs with ease. It offers a range of features that streamline the process of organizing your browsing experience. Users can quickly open, close, and pin tabs, as well as drag them around for better organization. One of its standout features is the ability to save all open windows and tabs for later access with just a single click. Additionally, Tabby supports various keyboard shortcuts for efficient navigation, allowing users to open the last used tab or window, and quickly select or filter tabs using keyboard commands.

The extension also provides flexible layout options, enabling users to switch between different views such as Popup, Window, Tab, and Sidebar. Tabby incorporates advanced search capabilities using regex syntax, which enhances the ability to filter and find specific tabs. Privacy is prioritized, as all data is either discarded upon closing the browser or saved in local storage. As an open-source addon, Tabby ensures transparency and a commitment to user privacy, making it a valuable tool for anyone looking to optimize their tab management on Firefox.