Google has released a new plugin for firefox that synchronizes various settings from one pc to another making use of a google account. Essentially, it saves certain preferences from your browser to your Google account, then when the browser is launched again it retrieves any changes from the Google Account. This sounds like a great solution for people trying to keep bookmarks synced across multiple pcs. I wonder if it could track what extensions are installed and make sure you have the same set of extensions on all pcs?