e621 Subscriptions is a free Chrome extension developed by milesseventh. Designed for e621.net, a popular image sharing website, this extension adds a Watched/Subscribe feature to enhance the tag subscription functionality.

With e621 Subscriptions, users can easily subscribe to their favorite tags on e621.net. The extension adds a "Watched" button to the navigation bar at the top of the page, allowing users to quickly access their subscribed tags. Additionally, for every tag displayed on the sidebar, an "OwO/XwX (Subscribe/Unsubscribe)" button is embedded, providing a convenient way to manage tag subscriptions.

One of the standout features of e621 Subscriptions is the ability to check for new images without having to visit the site. By simply opening the extension's popup window, users can see the number of new images available. This saves time and allows users to stay up-to-date with the latest content on e621.net.

Overall, e621 Subscriptions is a valuable add-on for e621.net users who want to enhance their tag subscription experience. With its intuitive interface and time-saving features, this Chrome extension is sure to be a favorite among e621.net enthusiasts.