Firefox Password Exporter is a Firefox Extension that export and import your saved passwords and rejected sites from Password Manager. Your exported passwords will be exported to a CSV or XML file which you can then import on any computer. You can also encrypt the usernames and passwords from plain recognition.
To use Firefox Password Exporter, go to Tools -> Options -> Security pane -> Import/Export Password button.
With Firefox Password Exporter, you can easily backup your login details as a CSV or XML file and transfer your them between computers.
You can download the latest version of Firefox Password Exporter from https://addons.mozilla.org/en-US/firefox/addon/2848. It supports Firefox 1.5 – 3.0a1, Thunderbird 1.5 – 3.0a1, Flock, and Songbird.