Lunascape is a web browser that handles all three major web rendering engines — Mozilla Firefox’s Gecko, Internet Explorer’s Trident, and WebKit (which is used by Google Chrome and Safari.
Uzbl is a lightweight webkit browser following the UNIX philosophy - to do one thing and do it well.Discontinued
Latest version was in 2016. See news: https://www.uzbl.org/
surf is a simple web browser based on WebKit2/GTK+. It is able to display websites and follow links. It supports the XEmbed protocol which makes it possible to embed it in another application. Furthermore, one can point surf to another URI by setting its XProperties.
FireDragon is a fork of LibreWolf. It has custom branding and enhanced KDE integration with OpenSUSE patches and kifredragonhelper. It comes with Ublock Origin, Canvasblocker, Dark Reader, ClearURLs, and Tabliss added.
QtWeb Internet Browser - lightweight, secure and portable browser having unique user interface and privacy features. QtWeb is an open source project based on Nokia's Qt framework and Apple's WebKit rendering engine (the same as being used in Apple Safari and Google...Discontinued
Last version was released 2 years ago (9th September 2013) , last source code change was 2 years ago (9th October 2013)
Sandcat Browser 5 brings unique features that are useful for pen-testers and web developers. Sandcat is built on top of Chromium and uses the Lua programming language to provide extensions and scripting support.Discontinued
Latest release Nov 16, 2018
A fast and more graceful way to browse the web. Multi-View show multiple web pages at same time. Save web pages when the software closing and restore saved pages at startup. Dock and table web pages as you want, and support 4K display and scaling.
The Decentr browser is a privacy-focused, lightning fast, and completely secure web browser built on Decentr's custom blockchain with a free, fully-featured VPN and ad blocker.
An experimental Firefox fork that enhances focus and increases work productivity due to its Hyper minimalistic UI and built-in tools.
Lucid Browser is a free and open source browser designed to be small, light, fast, and simple. The app itself is as small as 1 MB. The browser uses a custom homepage that loads locally for quick start-ups. It is easy to use and very handy.Discontinued
The last update is from January 2019.