Thunderbird New Mail Notifier
If you regularly use or have used Windows, you’re familiar with the taskbar’s notification area (often called the “system tray”), canonically found in the lower right of your screen. This is the place where thoughtless application programmers stuff icons for their programs; programs that often don’t deserve or need such a prominent piece of real estate.
Anyway, one important notification that you want is for new mail. That blessed little envelope icon with its siren call to drop whatever you’re doing at the moment and read your email, in the hopes that this new message will finally change your life for the better, perhaps with a promise of millions of dollars from some third world country.
When I switched to using Mozilla Thunderbird on Ubuntu GNU/Linux, it was a very easy switch, but I missed my little tray notifier. So I was pleased recently to find the Mozilla New Mail Icon extension, or, “Biff”.