Hacker News: Saw it Last Time is a free Chrome add-on developed by Ryan Brubaker. This add-on falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory.

This add-on is designed to address the frustration of having to reload Hacker News frequently and scan through the page to find new stories. With Hacker News: Saw it Last Time, you no longer have to waste time on stories you have already seen.

Once installed, this add-on hides any stories on the front page of the News/New/Ask/Show tabs that were present the last time you loaded the page. By eliminating the stories you have already seen, you can focus on the new and fresh content without any distractions.

With its simple and effective functionality, Hacker News: Saw it Last Time offers a seamless browsing experience for Hacker News users who want to stay up-to-date with the latest stories without wasting time on redundant content.