Yes, you can install and run Puffin Web Browser on Windows and Mac. Puffin Web Browser is available for both operating systems and can be downloaded from their official website.
As for safety, Puffin Web Browser is generally considered safe. It uses encryption to protect your browsing data and employs various security features to keep you safe from malware and phishing attacks. However, like any web browser, it's important to use common sense and be cautious when browsing the internet, especially when visiting unfamiliar websites or downloading files.
It's also worth noting that Puffin Web Browser routes your internet traffic through their servers, which can potentially compromise your privacy. However, the company claims that they don't store your browsing data or track your online activities, and they have a good reputation in the industry.
Overall, Puffin Web Browser is a legitimate and safe browser to use on your Windows or Mac computer.