.XUL File

The xul file extension is related to Firefox browser and used for its user interface files.

XUL (pronounced zool and it rhymes with cool) was created to make development of the Mozilla browser easier and faster. It is an XML language so all features available to XML are also available to XUL.

Most applications need to be developed using features of a specific platform making building cross-platform software time-consuming and costly.

A number of cross-platform solutions have been developed in the past. Java, for example, has portability as a main selling point. XUL is one such language designed specifically for building portable user interfaces. It takes a long time to build an application even for only one platform. The time required to compile and debug can be lengthy. With XUL, an interface can be implemented and modified quickly and easily.

XUL has all the advantages of other XML languages. For example XHTML or other XML languages such as MathML or SVG can be inserted within it. Also, text displayed with XUL is easily localizable, which means that it can be translated into other languages with little effort.

MIME types:
text/xul

Files with xul file extension are related XML User Interface Language and used for its default file format.

How to open:

Use any source code editor to view content of *.xul files.

How to convert:

As far as we know, this .xul file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.