The Tab Suspender is a Firefox extension designed to optimize browser performance by managing inactive tabs. It automatically suspends tabs that have not been used for a user-defined duration, ranging from 1 to 1440 minutes. This lightweight solution replaces suspended tabs with a minimal page that retains the original URL and title, allowing for quick restoration with a simple click. The extension also includes features such as keyboard shortcuts for tab management and the ability to whitelist certain sites to prevent them from being suspended.

Recent updates have improved functionality, including syncing settings with the Firefox profile and options to export or import whitelisted sites. Users can also configure tab protection to prevent suspension for tabs with media playback, unsaved form changes, or notifications. The Tab Suspender is designed to enhance the browsing experience by reducing memory usage while ensuring easy access to important tabs.