Duoplay Plus is a free Chrome extension developed by Magnus Arge. It falls under the category of Browsers and specifically belongs to the Add-ons & Tools subcategory. This extension aims to enhance the streaming experience on Duoplay.ee, a streaming website.

With Duoplay Plus, users can mark episodes as watched, ensuring that the next time they visit the series page, the correct episode is automatically opened. This is achieved through the addition of an eye-shaped button next to each episode. Clicking on this button saves the browser's memory that the episode has been watched, allowing for seamless continuation.

If no episodes have been marked as watched, Duoplay Plus will open the first episode of the series. Without the extension, the default behavior would be to open the latest episode. However, if the latest episode has already been marked as watched, Duoplay Plus will check for any unwatched episodes preceding it. If there are unwatched episodes, the extension will open the first one; otherwise, it will not take any action.

It's important to note that Duoplay Plus does not automatically mark episodes as watched when they are started. Manual marking is required.

The viewing data saved by Duoplay Plus is stored in the browser's memory and remains available until the extension is removed. There is no option to export the data provided by the extension.