Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
SecureBridge - Сlient and server components for SSH, SFTP, FTPS, SSL, HTTP/HTTPS, WebSocket, and SignalR protocols
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.
FireSSH - After 13 years and 25 million downloads later, Firefox has officially removed FireFTP and FireSSH support from the browser. Thus, I've ended support / development of the addons. I recommend switching to Waterfox to continue using the addons.
Salt - Fast, scalable and flexible software for data center automation
Userify - Userify is a cloud-based SSH key management solution.