The caniuse.com Extension is a free Chrome add-on developed by benasnek. This handy tool allows users to quickly check the CSS property parity between different browsers with just a right-click. Instead of opening a new tab and manually searching for specific rule support on caniuse.com, this extension streamlines the process by automatically searching for you.

With the caniuse.com Extension, you can easily verify if a CSS property is supported across all major browsers or if it requires vendor prefixes or fallbacks. This saves time and effort, especially for developers who frequently work with CSS and need to ensure cross-browser compatibility.

By simply selecting a piece of text and right-clicking, the extension swiftly fetches the relevant information from caniuse.com and displays it in a convenient pop-up. This allows users to quickly assess whether a particular CSS property is safe to use or if alternative solutions are needed.

Overall, the caniuse.com Extension is a valuable tool for web developers, providing a seamless way to check CSS property parity between browsers without the need for manual searches. Its intuitive right-click functionality and instant results make it a time-saving addition to any developer's toolkit.