Available as a free to use software application, MozBackup is a backup utility that is intended to help users backup their Firefox and Thunderbird related data such as extensions, personal settings, bookmarks, etc. Supported in various Windows platforms, you can implement this utility in Windows 95, 98, 2000, NT, Me, XP, and Vista versions. The tool also offers support for Netscape and SeaMonkey based on Windows systems. However, you might not find this tool beneficial for Sunbird, Firefox Portable, Flock, and Songbird. You need to close the application, before you can execute the backup for the same. The tool allows you to choose the profiles that you need to backup and the location of backup.