XULRunner 45.0.22 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Development Tools, more precisely IDE.
The latest version of XULRunner is supported on PCs running Windows XP/Vista/7/8/10/11, 32-bit. Launcher.exe, profilemanager.exe and xulrunner.exe are the most frequent filenames for this program's installer. This free program is an intellectual property of Mozilla.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The following versions: 45.0, 6.0 and 1.9 are the most frequently downloaded ones by the program users.
From the developer:
XULRunner is a Mozilla runtime package that can be used to bootstrap XUL XPCOM applications that are as rich as Firefox and Thunderbird. It will provide mechanisms for installing, upgrading, and uninstalling these applications. XULRunner will also provide libxul, a solution which allows the embedding of Mozilla technologies in other projects and products.
You may want to check out more software, such as CruiseControl.NET, Dark Basic Pro or TortoiseSVN 32 bit, which might be related to XULRunner.