Give a link separately to 'duplicate' which will eventually open the same URL in different tab with the same local state and with the flag do-not-sync. You can develop your services that uses state locally like progressive web apps. There are plenty of screenshot taking extensions are available in the market. (Alternatively, press Ctrl+Shift+D on Windows and Linux or Command+Shift+D on. After opening multiple sites, click the menu button (three dots) in the top-right corner of the Chrome window and select Bookmarks > Bookmark all tabs. Then, open the sites that you want to copy the addresses of. Let the users continue on the current tab with the current state, your extension should be able to capture the screenshot of that area and open that screenshot in new tab. To get started, open Chrome on Windows, Linux, or Mac.

(But that's good for your case) var dtab = window.open('about:blank', 'duplicate_a_tab') ĭ('. This will let you lose your DOM events and State manipulation javascript.

You can convert the DOM to a string, pass it to the new window and then parse it as a document. There is not currently a keyboard shortcut to duplicate a tab in Google Chrome (see a list of keyboard shortcuts). But a similar behavior can be achieved in some ways i know :

How to duplicate tab in chrome