I consider myself relatively browser agnostic but I use Firefox for a lot of my work.  I utilize multiple profiles and use the –no-remote option to actually run these multiple profiles at the same time.  It keeps the cookies, extensions, add-ons and sessions all separate which allows me to work more efficiently. I also rely [...]

Go here: mrdoob.com/lab/javascript/harmony/. Play with Harmony. You’ll get it. It. Is. Dope! HTML5 is the media-rich future of the World Wide Web and this sort of thing is going to become more prevalent very quickly. I’m excited!