The JetBrains Toolbox Extension is a free Chrome extension developed by JetBrains. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This extension allows users to easily clone and open projects from GitHub, GitLab, and Bitbucket directly within IntelliJ-based IDEs.

With the extension installed, users will see buttons that enable them to clone and open projects from these popular code hosting platforms. It provides a convenient way to seamlessly integrate code repositories into JetBrains IDEs, making it easier for developers to work on their projects.

To use the extension, the JetBrains Toolbox App must be installed on the user's computer. The Toolbox App can be downloaded from the official JetBrains website.

Additionally, the extension supports self-hosted GitHub, GitLab, and Bitbucket instances. Users can enable the extension for their specific websites by ticking the "Enable on this domain" option in the extension settings menu.

In case users encounter any issues while using the extension, they can create issue requests at the JetBrains tracker. The tracker link is provided in the extension description.

For those interested in contributing to the extension, it is an open-source project hosted on GitHub. The repository address can be found on the JetBrains website.