Fistbump is a free Chrome extension designed to seamlessly connect web applications to the Fistbump desktop wallet. This add-on enables web apps to utilize the wallet's functionalities, such as retrieving wallet addresses, signing messages, and processing transactions with user approval. The extension utilizes Chrome's native messaging API to ensure secure communication between the web and the desktop application, enhancing the user experience while maintaining privacy without any data collection.

Users can initiate connections with web apps through a straightforward approval process, where the desktop wallet displays a confirmation modal upon the first request from a site. Subsequent requests from the same site proceed without prompts. The extension supports transaction sending and message signing, requiring the wallet to be unlocked for security. As an open-source tool, Fistbump emphasizes transparency and user control, making it a valuable asset for those utilizing the Fistbump wallet.