If you're a big user of the Firefox web browser, there's nothing worse than having loads of pages open in tabs when you need to restart, or worse Firefox decides to crash. You lose all your open pages and forget where you were.

Install the Session Manager plug-in, and your troubles are no more.

It'll save a backup of your session, including cookies and which tabs you've currently got open. You can even set it to open the last session when you start Firefox – so you can pick up exactly where you left off.

What's more, it'll keep track of tabs you've recently closed so you can quickly re-open them if you killed a page you wanted by accident.

You can download Session Manager here.