Randomized Rickroller is a Chrome extension developed by noahrefsland. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. With this extension, every time you click, there is a 1 in a million chance of getting rickrolled in a new tab.

The default setting of the extension ensures that there is a 1 in 1 million chance of being rickrolled with each click. However, you have the option to change this value by clicking on the extension. This gives you the freedom to prank your friends or family by surprising them with a classic internet meme.

Please note that the developer, noahrefsland, is not the owner of the song "Never Gonna Give You Up" and all rights belong to the song's current owners and original producer, Rick Astley.