On Windows operating systems, the Windows features of validating a signature are used. On Solaris and Linux systems, files that are supplied by Thunderbird, Mozilla or Firefox are used. You must ensure that the files that are in use within your system are really the original files that were supplied by the original developers. For malevolent intruders, there are numerous ways to replace original files with other files that they supply.
在 Windows 操作系统上，可使用 Windows 的签名验证功能。在 Solaris 和 Linux 系统上，可使用由 Thunderbird、Mozilla 或 Firefox 提供的文件。您必须确保系统内正在使用的文件确实是由原始开发者提供的原始文件。恶意入侵者可以使用多种方法将原始文件替换为他们自己提供的其他文件。