Gmail Manager NG

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由 negronomicon 发表于 Dec. 1, 2014 · 永久链接

I've 3 gmail account. always worked.
but now, for 1 only of these, always returns zero messages in "button area" despite if I click and see new messages unread inside. Any suggestions?
(I use firefox 33.1.1 italian language, under windows xp sp3.)