Google & Firefox

If you use Firefox (and we all do, don't we?), Google Browser Sync for Firefox is an extension that continuously synchronises your browser settings – including bookmarks, history, persistent cookies, and saved passwords – across your computers. It also allows you to restore open tabs and windows across different machines and browser sessions.
Looks useful. IE don't do nothing like this...
http://www.google.com/tools/firefox/browsersync/index.html