It's FOSS - https://itsfoss.com/iridium-browser-review/
Brief: Iridium is a web browser based on Chromium project. It has been customized to not share your data and thus keeping your privacy intact.
Google Chrome is one of the most popular web browsers in use today. People like it because it is quick and highly customizable. However, many people are leery of using it because Chrome tends to send lots of user information home to the massive Google servers. (You didn’t think that Google built these huge data centers to store cat videos, did you?) Thankfully, there is an alternative for those who are privacy conscious.