Review for FireTray by unislash
Rated 5 out of 5 stars
Wow, awesome. And so much more options than minimize.to.tray (what do you expect eh?) for thunderbird.
One thing, though: I wish you could configure it to change icons when you get a *new* email--not only when you have unread messages (because people generally have thousands of them and only care when they get new ones).
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