This project is a custom and independent version of 
Mozilla Firefox, with the primary goals of privacy, security and user freedom.
Falkon, formerly QupZilla, is a QtWebEngine based cross-platform web browser.
It aims to be a lightweight web browser available through all major platforms.
Falkon has all standard functions you expect from a web browser. It includes bookmarks, history (both also in sidebar).
The Mullvad Browser is a privacy-focused web browser developed in a collaboration between Mullvad VPN and the Tor Project. It’s designed to minimize tracking and fingerprinting. You could say it’s a Tor Browser to use without the Tor Network.
Open-source browser disables Google integration and background services, increasing privacy, stripping binaries, and offering user control with full transparency.
Min is a fast, minimal browser that protects your privacy. It includes an interface designed to minimize distractions, and features such as:
Comments
Why are these the best browsers?
I just think so
Why?
And what browsers are the best for you?
I'm mostly concerned with privacy and security aspects. So for security, implementations with Windows OS makes Edge secure, while for privacy decreasing fingerprint with Tor or Mullvad browsers. For Android, hardened chromium, Vanadium probably being the best.