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What does the little red number in the Thunderbird logo mean

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be8
be8
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What does the little red number in the bottom icon tray Thunderbird logo mean?

What does the little red number in the bottom icon tray Thunderbird logo mean?

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Matt
Matt
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The number of unread mails. or unseen mail. Depending on your settings in "When new messages arrive" > App icon Options in preferences.