Rails 2/3 Guides redirect is a Chrome extension developed by concept47. This free extension is categorized under Browsers, specifically Add-ons & Tools. The purpose of this extension is to automatically redirect users from the Rails guides written for Rails 4 to the Rails 2 or 3 version of the desired page.

With this extension, users can easily set their preferred version of the guides, and the extension will remember this preference every time they navigate to any Rails Guides page. This eliminates the hassle of manually typing in the URL to access the Rails 2 or 3 version of the page.

This extension is particularly useful for developers who still work with Rails 3 apps or some Rails 2 ones. It saves time and effort by providing instant redirection to the desired version of the guides.

Please note that this extension does not require any payment and is available for free.