You can use TBBackup to backup all your important Thunderbird data.All data that have been chosen for backup are collected together in a common backup file. All data in this file are compressed and stored in a ZIP file format.Instead of executing many different files, now there is only one space saving ZIP file to be executed for backup.
With the help of TBBackup you can protect and backup the following Thunderbird data:
* E-Mail folders
* E-Mail- and News-Accounts (POP3, IMAP, NNTP, RSS)
* Virtual folders
* Signatures
* Addressbook and collected addresses
* Firefox Bookmarks
* Internet Explorer Favorites
* Password files
* Spamfilter
* Themes
* Sunbird Calendar
* Program settings
* Message views
* Appearance settings
* User dictionaries
* Certificate
For protecting and securing your backup data, the backup files can be verified for errors and when required can be encrypted with a password.The backup files can easily be opened by double clicking on the files.On opening, all contents are displayed in the File viewer. Restoration of data can be carried out as simply and comfortably as a data backup.

The license of this software is Free Trial Software, the price is $19.95, you can free download and get a free trial.