FEBE allows you to quickly and easily backup your Firefox extensions. In
fact, it goes beyond just backing up — It will actually rebuild your
extensions individually into installable .xpi files. Now you can easily
synchronize your office and home browsers.
FEBE backs up your extensions, themes, and (optionally) your bookmarks,
preferences, passwords, cookies and just about everything else Firefox
offers (it can even backup/restore your entire profile).

Backups can be performed on demand or scheduled for daily, weekly, or
monthly unattended runs.

mozilla addons url:https://addons.mozilla.org/en-US/firefox/addon/2109

MozBackup

MozBackup is a simple utility for creating backups of Mozilla
Firefox,
Mozilla Thunderbird, SeaMonkey, Mozilla Suite and Netscape profiles.
*It allows you to backup and restore* bookmarks, mail, contacts, history,
extensions, cache etc. It’s an easy way to do Firefox backup, Thunderbird
backup .

the homepage url:http://mozbackup.jasnapaka.com/

If you’re not familiar with Firefox, it’s an open source web browser and I suggest you use it right now. Trash that IE and start using Firefox (or Google Chrome – cooler!).

File transfer protocol (FTP) is how we send large files from one computer to another using the Internet — not an e-mail attachment.

Here’s how to install and use FireFTP on Firefox.

First thing’s first… install FireFTP to your firefox Browser… You can download FIREFTP here. Or using Firefox, open up this page and click on the “Add to Firefox” button. Dowload one now.

It will automatically install and you will need to restart Firefox.

After restarting there will be a new object on the Tools menu of Firefox called … what else, FireFTP.

When you click on that, Firefox will open another Tab and the first time you open FireFTP, you’ll need to create an account:

You’ll need to input some information to the Fireftp’s text boxes:

Of course, the important field is the ‘host’, the login and the password field.

You will then have a drop down menu with your newly created profile… simple choose it and click connect and you’re good to go!