When you are surfing a webpage and while you work on a page like dashboard of your website. You may need to duplicate the tab in some cases.
Duplicating a tab means, when you are working on a webpage you can open the same content on the other tab. This will be useful in some cases like , Submitting something which may lead to error and cause erasing of all your entered text in the form you submitted. So if you have a duplicate tab of the same page. It will be helpful in such cases.
You can open duplicate tab of a webpage by two ways :