MozBackup is a simple utility for creating backups of Mozilla Firefox, Mozilla Thunderbird, Mozilla Sunbird, Flock, SeaMonkey, Mozilla Suite, Spicebird and Netscape profiles. It allows you to backup and restore bookmarks, mail, contacts, history, extensions, cache etc. It's an easy way to do Firefox backup, Thunderbird backup ...
This version newly supports Mozilla Sunbird, Flock and Spicebird. You can create automatic backups via command line and create backups of applications like Firefox/Thunderbird Portable
Tools and Utilities
Product page: here