I thought that everybody would find this useful. From what I heard on ChuckChat, you encrypt it locally (reading the FAQ, its a PIN and it doesn't say how many characters there are). I haven't installed it myself, I use a third party google toolbar, something about the UI as I recall (it maybe the blogger button, now that I think about it)....
Google Browser Sync for Firefox is an extension that continuously synchronizes 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. For more info, please visit our FAQ.
Google Browser Sync