What are the benefits of having an application like this?

There are many advantages to using this app. For example, you can set a timer to get back to a tab after a specific amount of inactivity, the tab will be marked with a blinker icon, and you will get an alert when you have to return to the tab.

If you want to have it working for all tabs, you can add this option to the options page.

If you want to get an alert only once, set the timer to 1.

You can see the settings on the options page, so you can configure the alert to be shown when you are on the app.

If you want to get a notification every time you are leaving the application, change the option on the settings page to require notifications.