POSIX web browsers

Swiftfox is a web browser based on Mozilla Firefox.

NCSA Mosaic, or simply Mosaic, is a discontinued early web browser.

Dillo is a minimalistic web browser particularly intended for older or slower computers and embedded systems.

Mozilla Firefox 3.

SeaMonkey is a free and open-source Internet suite.

Netscape Navigator is a discontinued proprietary web browser, and the original browser of the Netscape line, from versions 1 to 4.

Kazehakase (Japanese: Dr. Wind (風博士 kaze hakase) is a web browser for Unix-like operating systems that uses the GTK+ libraries. Kazehakase embeds the Gecko layout engine as well as GTK+ WebKit. However, the author also plans to add the ability to switch between additional different rendering engines (e.g. GtkHTML, Dillo, w3m). The browser is named after the short story "Kazehakase" by the Japanese author Ango Sakaguchi; its literal meaning is "Dr. Wind" (a PhD rather than a medical doctor). Kazehakase seems to be no longer in active development since 2012.

Galeon is a discontinued Gecko-based web browser that was created by Marco Pesenti Gritti with the goal of delivering a consistent browsing experience to GNOME desktop environment.

Konqueror is a free and open-source web browser and file manager that provides file viewer functionality for file systems such as local files, files on a remote FTP server and files in a disk image.

Lynx is a highly configurable text-based web browser for use on cursor-addressable character cell terminals.

Amaya (formerly Amaya World) is a free and open source WYSIWYG web authoring tool with browsing abilities.

Minimo (from "Mini Mozilla") was a project to create a version of the Mozilla web browser for small devices like PDAs and mobile phones.

ELinks is a free text-based console web browser for Unix-like operating systems.

Mozilla Firefox 2 is a version of Firefox, a web browser released on October 24, 2006 by the Mozilla Corporation.

NetSurf is an open source web browser which uses its own layout engine.

Mozilla Firefox 4 is a version of the Firefox web browser, released on March 22, 2011.

GNUzilla is the GNU version (a free software rebranding) of the Mozilla Application Suite (whose active successor is SeaMonkey).

Opera is a web browser developed by Opera Software.

Midori (緑, Japanese for green) is a lightweight web browser.

Flock is a discontinued web browser that specialized in providing social networking and Web 2.

w3m is a free software/open source text-based web browser and terminal pager.

Links is an open source text and graphic web browser with a pull-down menu system.

Swiftweasel is a build of Mozilla Firefox source code, which uses non-trademarked graphics and logos.

Grail was a free extensible multi-platform web browser written in the Python programming language.

In 2006, a branding issue developed when Mike Connor, representing the Mozilla Corporation, requested that the Debian Project comply with Mozilla standards for use of the Thunderbird trademark when redistributing the Thunderbird software.

Netscape was the general name for a series of web browsers originally produced by Netscape Communications Corporation, now a subsidiary of AOL.

GNU IceCat, formerly known as GNU IceWeasel, is a free software rebranding of the Mozilla Firefox web browser distributed by the GNU Project.

ViolaWWW is a discontinued browser, the first to be popular for the World Wide Web (WWW).

Netscape Navigator 9 is a discontinued web browser that was produced by the Netscape Communications division of parent AOL, first announced on January 23, 2007.

MidasWWW was one of the earliest web browsers, developed at the Stanford Linear Accelerator Center (SLAC).