Save Open Tabs is a free Firefox extension designed for users who want to manage their browser tabs effectively. This tool allows you to save all currently opened tabs into the extension's local storage with a simple click. Whenever the extension icon is pressed, the saved tabs are displayed, enabling users to quickly access their previous browsing sessions. This feature is particularly beneficial for those who frequently close their browsers and wish to resume their activities seamlessly.

An important aspect of Save Open Tabs is its ability to prevent duplicate entries. When saving tabs, if a URL already exists in the saved list, it will not be added again, ensuring a clean and organized tab management system. Users can also easily delete individual saved tabs by clicking on the 'x' button next to each item. Overall, this extension provides a straightforward and efficient way to keep track of important web pages.