If you want to backup/restore the user profiles of a Mozilla application (including SeaMonkey, Firefox, Thunderbird, Sunbird, Flock, Postbox Express, Mozilla Suite, Spicebird, Songbird, Netscape, Wyzo, etc.) or to migrate the user profiles from one computer to another, I've found a free, simple and amazing application called MozBackup.
MozBackup is a freeware (even for commercial use) and works on Windows 98/ME/NT/2000/XP/2003/Vista/7. It is developed in Czech republic.
It can backup a Mozilla user profile into a single file, and restore it to the Mozilla applications in the same or different computer. It works with portable version of Mozilla applications too. You have the option to password protect the backup file too.
It is able to backup/restore everything in the Mozilla user profile, including all the settings, emails, address books, bookmarks, history, sidebars, user styles, extensions, saved passwords, cookies, saved form details, downloaded file list, security certificates , cache, signature files, etc.
It is intelligent enough to detect the Mozilla applications installed in the computer, and the backup/restore operation can be done within a few simple steps only.
I am able to transfer everything in my SeaMonkey from one computer to another within minutes. A big thumb-up for this.
Click here to go to the website of MozBackup. You can download it there.