Quickly Add Appointments to Google Calendar in Firefox

Google Calendar is simply a great calendar application, and for many of us it has become the logical choice. The only problem is that to add a new appointment you have to open the calendar. There should really be a simpler way.

And it turns out there is, in the form of an extension called Google Calendar Quick Add. All you have to do is use the Ctrl + ; keyboard shortcut to pop up this dialog: