MyDevTool is a Chrome extension that allows users to quickly modify cookies and includes a color picker tool. The extension is designed to work specifically on designated websites during the development process. Users can efficiently access and edit cookies on the current site being worked on, while this functionality is disabled on other websites. Additionally, it offers a color picker tool for users to easily obtain RGB values.

This extension provides developers with a convenient way to manage cookies and extract color information while working on specific websites. By enabling quick cookie modifications and offering a color picker tool, MyDevTool aims to streamline the development process for users.