As part of the new OS X Mavericks, websites can now send push notifications to your computer. Back in June, we featured the first public website that took advantage of the native push notification feature. Today, the same developer, Connor LaCombe, released Pronto Push, a new service that allows you to receive push notifications for any RSS feed.

Rather than waiting for your favorite websites’ developers to add the push notification feature, you can sign up for Pronto Push, type in the websites you’d like to receive notifications for, and immediately receive a push notification when a new post has been added. There’s no software to install, and managing your subscriptions is done through a simple web interface. You can even manage multiple Macs under one account.

Initial setup has to be completed with Safari 7, but after that clicking on notifications will open the related post in your default browser. Notifications come through immediately, so there’s no delay between when a new RSS item is added and when you receive the notification. You can also receive instantaneous Facebook notifications (since the native ones are usually delayed or don’t even appear).

Pronto Push is free and requires Mavericks.