<p>[[Why is TailsYou can installing <i> *Thunderbird</i>* as A[[additional Ssoftware?|thunderbird|persistent_storage/additional_software]]</p>
.

You can install *Thunderbird* as [[additional software|persistent_storage/additional_software]].

<p>If Tails detects that you have both the [[**Thunderbird Email
Client|persistent_storage/configure#thunderbird]]** and **Additional
Software** features of the Persistent
Storage turned on, Tails and automatically adds <i>*Thunderbird</i>* to your list of
[[Additional Software|persistent_storage/ additional_ software]].</p>.

Tails detects that you have both the **Thunderbird Email Client** and **Additional
Software** features of the Persistent Storage turned on and automatically
adds *Thunderbird* to your list of additional software.