---   Files / folders to backup, Suggested profile contents to transfer
http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox



Files
=====
Bookmarks and browsing history:

    * bookmarks.html (Firefox 2) - Bookmarks
    * history.dat (Firefox 2) - Browsing history of previously visited websites
    * places.sqlite (Firefox 3) - Bookmarks and browsing history. Note that Firefox 3 stores both bookmarks and browsing history in the places.sqlite file. 
    
You can alternately import a bookmarks HTML file if you wish to add those bookmarks to your current Firefox bookmarks. In Firefox 3, you can also use the Firefox Library "Restore" feature to replace your current bookmarks with a bookmark backup file (such as a dated JSON backup from the bookmarkbackups folder of another Firefox 3 profile) but this will not transfer your browsing history.

Cookies:

    * cookies.txt (Firefox 2) or cookies.sqlite (Firefox 3) - Cookies 

Download actions for file types:

    * mimeTypes.rdf - What action to perform when downloading certain types of files (save or open with a specified application). 

Form history:

    * formhistory.dat (Firefox 2) or formhistory.sqlite (Firefox 3) - Saved entries for web forms and the Search Bar. 

Passwords: (Both of these files must be copied)

    * key3.db - Key database for passwords.
    * signons2.txt (Firefox 2) or signons3.txt (Firefox 3) or signons.sqlite (Firefox 3.5) - Saved passwords. Note: signons.txt was used prior to version 2.0.0.2. 

Permissions:

    * hostperm.1 (Firefox 2) or permissions.sqlite (Firefox 3) - Per-site preferences for allowing cookies, images, popups, and extension install permissions. 

Preferences:

    * user.js (an optional file) and prefs.js - User preference settings. 
Not recommended to transfer if you had problems in your old profile. You 
may need to manually edit the paths in prefs.js to reflect the new profile
 location. If the new profile doesn't have the same extensions, you may 
have some unused preferences set by those extensions, but that usually 
doesn't harm anything. 

Security certificate settings:

    * cert8.db 

Session storage:

    * webappsstore.sqlite - Only copy this if you deliberately keep and use 
many saved sessions. 

Spelling corrections:

    * persdict.dat - Personal (custom) entries in the spell checker dictionary. 

Site specific settings (e.g. Page Zoom):

    * content-prefs.sqlite (Firefox 3 only). 


Folders
=======

    * bookmarkbackups - Contains dated bookmark backup files:
          o bookmarks-(date).html (Firefox 2) or 
bookmarks-(date).json (Firefox 3) 

Note: You can import an HTML backup file into any Firefox version. You can
 restore a JSON backup in Firefox 3 by opening the Library window, 
selecting "Import and Backup - Restore -> Choose File", and choosing one 
of the bookmark backup files in this folder.

    * chrome - Contains the following optional files (if created) that 
change the way Firefox and web pages look
          o userChrome.css
          o userContent.css
          o userChrome.js 

    * extensions - Contains added themes and extensions. Not recommended to
 transfer if you had problems in your old profile. After copying this folder 
or its contents to the new profile, delete the "extensions.ini",
 "extensions.cache" and "extensions.rdf" files from the profile folder. 
These files will be regenerated when you start Firefox. Note that some
 extensions store data in additional files in the profile, usually at the 
top of the directory. You'll need to move them separately. 

    * searchplugins - Contains additional search engines, if you've added 
any to Firefox. 



--- software

http://www.mozbackup.de/

Backups von Mozilla, Mozilla Firefox, Mozilla Thunderbird und Netscape Profilen erzeugen. Erlaubt, eMails, Favoriten, Kontakte, etc zu sichern.

Freeware