The following is a list of web browsers that are notable. Historical Layout engines Gecko is developed by the Mozilla Foundation. Goanna is a fork of Gecko developed by Moonchild Productions. Servo is an experimental web browser layout engine being developed cooperatively by Mozilla and Samsung. In 2020 the engine's development was transferred to the Linux Foundation. Presto was developed by Opera Software for use in Opera. Development stopped as Opera transitioned to Blink. Trident is developed by Microsoft for use in the Windows versions of Internet Explorer 4 to Internet Explorer 11. EdgeHTML is the engine developed by Microsoft for Edge. It is a largely rewritten fork of Trident with all legacy code removed. Tasman was developed by Microsoft for use in Internet Explorer 5 for Macintosh. KHTML is developed by the KDE project. WebKit is a fork of KHTML by Apple Inc. used in Apple Safari, and formerly in Chromium and Google Chrome. Blink is a 2013 fork of WebKit's WebCore component by Google used in Chromium, Google Chrome, Microsoft Edge, Opera, and Vivaldi. Graphical Current and maintained projects are listed in boldface. Trident shells Other software publishers have built browsers and other products around Microsoft's Trident engine. The following browsers are all based on that rendering engine: 360 Secure Browser AOL Explorer Bento Browser (built into Winamp) Deepnet Explorer GreenBrowser Internet Explorer MediaBrowser MSN Explorer NeoPlanet NetCaptor RealPlayer Tencent Traveler Gecko-based Camino for Mac OS X (formerly Chimera) Conkeror, keyboard-driven browser Galeon, GNOME's old default browser K-Meleon for Windows K-MeleonCCF ME for Windows (based on K-Meleon core, mostly written in Lua) K-Ninja for Windows (based on K-Meleon) MicroB (for Maemo) Minimo (for mobile) Mozilla Firefox (formerly Firebird and Phoenix) AT&T Pogo (based on Firefox) Cliqz, a fork of the Firefox web browser CometBird, an optimized fork of Firefox Comodo IceDragon (Firefox-based web browser for Windows) Flock (was based on Firefox until version 2.6.1, and based on Chromium thereafter) Iceweasel, Debian's Firefox rebrand GNU IceCat, GNU's fork of Firefox Netscape Browser 8 to Netscape Navigator 9 TenFourFox (Firefox port to PowerPC versions of Mac OS X) Timberwolf, AmigaOS' Firefox rebrand Tor Browser, patched Firefox ESR for browsing in Tor anonymity network Swiftfox (processor-optimised builds based on Firefox) Swiftweasel (processor-optimised builds based on Iceweasel) Waterfox (Firefox-based web browser for Windows, macOS, and Linux) xB Browser (formerly XeroBank Browser and Torpark), portable browser for anonymous browsing, originally based on Firefox