Vivaldi Browser
List of Firefox Based Browsers Waterfox
Steel is a straightforward Chromium-based browser that prioritizes privacy and performance.
Dooble is a niche, principled browser for users seeking a no-compromise, independent alternative to mainstream browsers for enhanced privacy
Ladybird is an ambitious, from-scratch effort to build a modern web browser that promises a truly independent alternative to the dominant Chrome-based browsers
Catsxp is a niche, Chromium-based alternative for users who want a fast, lightweight, and privacy-focused browser with a high degree of customization