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PaleMoon

• Developer: Moonchild Productions
• Development Status: Active
• Released: 2009
• Platforms: Windows, macOS, Linux
• Type: Browser
• Rendering Engine: Gecko (before version 26), Goanna (since version 26)

Overview

Pale Moon is an open-source web browser derived from Firefox.

Related Browsers

Firefox-derived browsers

These Firefox-derived browsers are separate projects, not official Firefox editions:

Browser	Description
Firefox	The Mozilla browser these projects are based on.
Waterfox	An independently maintained Firefox fork.
LibreWolf	A community Firefox fork focused on privacy and security.
PaleMoon	An independent browser that began as a Firefox fork.
IceCat	GNU's Firefox-based browser and rebrand.
Iceweasel	Debian's former rebranded Firefox package.
Swiftfox	A Firefox-based build optimized for Linux.

Moonchild browsers

PaleMoon and Basilisk are both developed by Moonchild Productions:

Browser	Description
PaleMoon	Focuses on customization and efficiency.
Basilisk	Focuses on classic Firefox features and extensions.

User-Agent Examples

Linux

Mozilla/5.0 (X11; Linux x86_64; rv:52.9) Gecko/20100101 Goanna/3.4 Firefox/52.9 PaleMoon/27.6.1

Windows

(Windows NT 6.2; WOW64) KHTML/4.11 Gecko/20130308 Firefox/23.0 (PaleMoon/20.3)

Code Example

import { UAParser } from 'ua-parser-js';
import { BrowserName } from 'ua-parser-js/enums';

const parser = new UAParser();
const ua = 'Mozilla/5.0 (X11; Linux x86_64; rv:52.9) Gecko/20100101 Goanna/3.4 Firefox/52.9 PaleMoon/27.6.1';

const browser = parser.setUA(ua).getBrowser();

console.log(browser);
// {name: "PaleMoon", version: "27.6.1", major: "27"}

console.log(browser.is(BrowserName.PALEMOON));
// true