Puffin Browser About this software: Puffin Browser screenshotPuffin Browser is a web browser that leverages the browser isolation technology to safeguard your web browsing in the cloud and keep threats like malware, ransomware, adware, and malicious links at bay. With an ever-increasing number of zero-day attacks out there, Puffin Secure Browser provides the most effective way to guard against them. Puffin implements Browser Isolation in the cloud sandbox. The cloud sandbox cannot isolate viruses 100% just like the local sandbox, but Puffins network protocol can isolate viruses 100%. Version 9.0.0.337 is a freeware program which does not have restrictions and it's free so it doesn't cost anything.