TJournal extension is a Chrome add-on developed by dmaushov. This free extension falls under the Browsers category, specifically within Add-ons & Tools. The main features of this extension include displaying the number of unique users commenting on articles and highlighting the worst comment of the week.

With TJournal extension, users can easily track the engagement levels of articles by viewing the unique user count in the comments section. Additionally, the feature that showcases the worst comment of the week adds an element of humor or critique to the browsing experience. Overall, this extension aims to enhance the user's interaction with online content by providing additional insights and entertainment.