K-Meleon
K-Meleon is a free and open-source, lightweight web browser for Microsoft Windows. Unlike cross-platform browsers, it uses the Windows API to create its user interface. Early versions of K-Meleon render web pages with Gecko, Mozilla's browser layout engine. The Firefox web browser and the Mozilla Thunderbird email client also use Gecko. K-Meleon became a popular browser for Windows. It was available as an optional default browser in Europe. After Mozilla deprecated embedding Gecko, K-Meleon continued to use it for several years. K-Meleon 76 uses the Goanna layout engine. Goanna is a fork of Gecko created for the Pale Moon browser.