Getting my brand new laptop yesterday was great. It wasn't all good though. The only thing worse than all the bloatware new laptops come with is putting all your old data and settings onto them, especially things you use everyday; your web browser.
BUT DON'T WORRY
A great program called MozBackup packages up all your essential Firefox and Thunderbird settings: bookmarks, mail, contacts, history, extensions, cache etc. The newest release of this essential utility for all Firefox users now supports popular extensions Scrapbook and Tabbrowser Preferences.
Download MozBackup for Windows. Install the app and run it. Pick which Mozilla program and which user and choose "Backup a profile." You will be able to password-protect your backup file if you'd like. (Click to enlarge the screenshot.)
There we go, within minutes you're ready to import all your old firefox settings to your new version/new computer. It's fantastic.