Mozilla removed it. This can happen when issues are found during the review of the extension or theme, or the extension or theme has been abusing the terms and conditions for addons.mozilla.org. The developer has the opportunity to resolve the issues and make the add-on available again.
Mozilla je ju wotstronił. To móže so stać, hdyž so problemy za přepruwowanje rozšěrjenja abo drasty namakaja, abo rozšěrjenje abo drasta je wuměnjenja za addons.mozilla.org znjewužiwało. Wuwiwar ma šansu, problemy rozrisać a přidatk znowa k dispoziciji stajić.