Frame Companion is a Chrome extension developed by Frame Labs. It is a free add-on tool in the Browsers category that creates an injected connection to the Frame desktop wallet. This extension is designed to be used with Frame, a native Ethereum wallet available for macOS, Windows, and Linux.

The main purpose of Frame Companion is to enable browser-based apps that do not have direct integration with Frame to connect to the desktop wallet. By injecting a connection, users can seamlessly interact with their Ethereum wallet and perform transactions within these browser-based apps.

To use Frame Companion, you will need to have the Frame desktop wallet installed on your computer. The extension acts as a bridge between the browser and the desktop wallet, providing a secure and convenient way to access your Ethereum wallet within various web applications.