http://tools.google.com/firefox/common/labs_logo.gif
Google Browser Sync
You've heard of it and for those who hasn't it's a handy extension for firefox that lets you synchronise bookmarks, passwords, history and session tabs across firefox on different PCs. I use it and I have Fedora Core 5 set up on my laptop and I'm able to have my existing desktop bookmarks and cookies instantly available on the laptop which has eliminated an entire genre of hassle. So stop emailing yourselfs those link's that you have on open tabs. If you live outside of the U.S. and download the xpi package directly you get this Error "This product is not available in your country". but try this Link.
Oh yeah and be advised the google toolbar is now installed by default on machines from: Dell, HP, GateWay, eMachines, and dozens of related brands. It is also being tagged onto other software packages. The mass majority of new machines coming online are now installed with google software by default.