You have a very good chance of closing your browser tab(s) when it's still in use. That's because they tend to keep your browser open for a while after you've finished using them.

But you don't want this to happen. What do you do when you need to save some more work? Just press 'Escape' or hit the 'close tabs' button in your browser's menu. But now you have to wait for a while for Chrome to take care of them.

SimpleLastTab helps you with this issue by preventing Chrome from closing a tab when there is still one more left. This prevents new tabs from opening when you're already in the middle of an operation.

This is a very simple way to prevent new tabs from opening when you're still using the last one.