niconico omnibox is a Chrome add-on developed by anatawa12. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory. This add-on allows users to open niconico, a popular Japanese video-sharing website, with a specific content ID directly from the omnibox (URL bar) in their Chrome browser.

With niconico omnibox, users can simply enter the keyword "nico " followed by the ID of the desired video from Niconico Video, and the add-on will automatically open the corresponding video on niconico. This streamlined process eliminates the need to manually navigate to the website and search for the video, saving users time and effort.

By providing a convenient way to access Niconico Video content, niconico omnibox enhances the browsing experience for Chrome users who frequently visit the platform. It is worth noting that this add-on is free to use, making it accessible to a wide range of users.

Overall, niconico omnibox is a useful Chrome add-on that simplifies the process of accessing Niconico Video content by allowing users to directly open videos with specific IDs from the omnibox.