TenFourFox Web Browser
TenFourFox was a specialized web browser designed to run on older, PowerPC-based Apple Macintosh computers
SwiftFox Web Browser
Swiftfox was a optimized version of Mozilla Firefox specifically for Linux, designed for one purpose: raw speed.
FireDragon Web Browser
FireDragon is a performance-optimized, privacy-hardened web browser for Linux, specifically designed for the Garuda Linux distribution.
Firefox Focus Web Browser
Firefox Focus is a streamlined, privacy-focused mobile browser designed for automatic, single-session browsing
Catalyst Web Browser
Catalyst is a niche, independent web browser for Windows, developed by a single programmer, César Claudio Lóriga González. It has been in active development since around 2016.
BonBon Web Browser
The project was eventually abandoned, its website shut down, and it is now considered obsolete and unsafe to use. It is remembered as a charming but unsuccessful experiment in browser design.