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What does the little red number in the Thunderbird logo mean

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  • Last reply by Matt

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?

All Replies (1)

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