X Post Marker is a free Chrome extension developed by developer.waieight. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This extension is designed to help users easily track new posts on X, formerly known as Twitter.

With X Post Marker, you can bookmark the X home screen, list, and search pages and mark new posts for easy viewing. This feature allows you to quickly identify and access the latest content on X without having to manually scroll through your feed.

It's important to note that the display of new posts is limited to the bookmarked X pages mentioned above. Additionally, the time zone for new posts is updated each time you close the bookmarked X pages, ensuring that you always have the most recent information.

Please be aware that due to changes in the specifications of X (formerly Twitter), there may be instances where the new posts are not displayed. However, X Post Marker remains a handy tool for those looking to stay up-to-date with the latest content on X.