These extensions extend Firefox with application functions and options that are not offered by the basic installation of the browser. The extensions are archive files that contain programs written in XUL (User Interface Language) and JavaScript. With over 5,000 free extensions, additional applications, options, and themes for all subject areas. The biggest plus of Firefox, however, is its large number of extensions with which you can upgrade the browser. In the basic installation, Firefox is a very fast browser that runs on almost all operating systems and is currently available in 64 languages. The main focus of the developers at Gecko is on the support of open Internet standards such as XHTML, HTML, and CSS.

Gecko was written in the programming language C++ and is free software. Learn the command to install the Mozilla FireFox browser on Windows 11 using the Windows Terminal app under Admin rights.įirefox is an open-source browser that uses the software module called Gecko (Gecko Rendering Engine).

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