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        Extra Folder Columns 1.1.5 Riavvio richiesto
di Joey Minta, Thunderbird Development Team
This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.
![[Avviso]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=58a99cbb-667a0970) Permessi
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