I first thought that I had to manually backup the profile, extensions and all other settings like cookies and move them from my desktop computer to my notebook. This would be a lot of work and I was hoping for a way to synchronize everything without doing all the manual work.

After installing Febe it is important to take a look at the options offered to define the directory that should store the backup of the settings and select all the elements that you want to backup. Febe offers the most comprehensive way to backup every aspect of Firefox, here is a list of possibilities:

Backup Extensions, Themes, Bookmarks, Preferences, Cookies, userChrome.css, userContent.css, usernames and passwords, phishing data, search plugins, browser and form fill history, permissions and user defined backups.

It is furthermore possible to schedule backups and create timestamped backups.

The only thing that is really missing is a way to automatically sync data between several computers.