Canonical Url Open is a Chrome add-on developed by ムーンドルド/瑠川菜月. This add-on allows users to open web page URLs in full browsers for personal computers with a new tab. It provides convenience and ease of use for users who want to quickly open web pages in a separate tab.

The add-on utilizes various methods to open a new tab, depending on the specifications of the web page. It prioritizes the canonical page URL, which is specified in the web page's source code using the "canonical" tag. It also supports the Open Graph Protocol URL and Twitter Card URL, if specified in the source code. Additionally, it works with the mixi check URL for PC, and can even correct URLs to ensure uniqueness.

With Canonical Url Open, users can effortlessly open web page URLs in full browsers with a simple push of a button. It is a free add-on available for Chrome users, providing a convenient solution for quick web page access.