MozBackup is the best way to backup your Firefox, Thunderbird, SeaMonkey, Mozilla Suite and Netscape profiles settings. You probably spent quite some time configuring them according to your needs, and a total loss of data would be devastating. No need to spend all that time again in case of data loss. Just use MozBackup and have your settings restored within seconds. It allows you to backup and restore bookmarks, mail, contacts, history, extensions, cache, etc. Try it. You won’t regret it.
Source: BARRY’S BEST COMPUTER TIPS