Secure browsers that protect your privacy
DuckDuckGo Desktop browser for MacOS focuses on privacy that is not based on Chromium (as most would expect). Instead it relies on OS-provided rendering engines to build the browser (mostly WebKit). This makes it possible to remove all the unnecessary stuff usually available with popular web browsers.
Brave is fast, secure, and privacy-focused by default. It has a built-in ad blocker and browser fingerprinting protection, while also giving you access to numerous add-ons and extensions.
Ungoogled Chromium browser is an open source project to provide a Chromium browser, without the Google privacy issues.
LibreWolf is a fork of Firefox focused on privacy, security, and freedom, only available for desktop operating systems.
If the browser you choose is less secure and privacy-friendly, lock down the browser and the software it can invoke.