See:

• http://kb.mozillazine.org/Password_Manager

Unfortunately, the suggested article is 3 version out of date, referring to v3.5 at the latest. I'm running v6.0.2 which does not seem to use any of the files referred to. At least, multiple searches of my hard drive did not find any of them.

See the following article from this point to the end.

Backing up and Restoring Passwords

• http://kb.mozillazine.org/Password_Manager#Backing_up_and_restoring_passwords

Check and tell if its working.

Nope! That's the same article, and the same no-longer-existing files as the last suggestion. :-(

Did you try the extensions mentioned in the end of the article ??

See this addon - Password Exporter 1.2.1

• https://addons.mozilla.org/en-US/firefox/addon/password-exporter/

Also see this list for more Password add-ons:

• https://addons.mozilla.org/en-US/firefox/search/?q=password

Check and tell if its working.

In article: http://kb.mozillazine.org/Password_Manager#Backing_up_and_restoring_passwords

• Backing up and restoring passwords
  • Firefox 3.5 and later versions, including current beta and nightly builds, use signons.sqlite.
• Troubleshooting
  • Firefox 3.5 and later versions use the file signons.sqlite to store the encrypted names and passwords. passwords.
  • You can rename signons.sqlite to signons.sqlite.sav to make Firefox 3.5+ versions use the file signons#.txt from a previous Firefox 3 or 2 version.
    • 3.5+ = same as 3.5 and later versions

Also:

• http://kb.mozillazine.org/Profile_folder_-_Firefox#Files_and_folders_in_the_profile
• https://support.mozilla.com/en-US/kb/Backing+up+your+information
• http://kb.mozillazine.org/Profile_backup
• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
• http://support.mozilla.com/en-US/kb/Recovering+important+data+from+an+old+profile