To use *Thunderbird* in another language, you can install the <code>thunderbird-l10n-<span class="command-placeholder">lang</span></code> package using the [[Additional Software|persistent_storage/additional_software]] feature. Replace <span class="command-placeholder">lang</span> with the code for your language. For example, `vi` for Vietnamese.
[List of available *Thunderbird* language packages](https://packages.debian.org/search?keywords=thunderbird-l10n&searchon=names&suite=stable§ion=all)
<p><i>GnuPG</i> and <i>[[Kleopatra|encryption_and_privacy/kleopatra]]</i> allow you to work with OpenPGP encrypted text and files. Consider using <i>Kleopatra</i> instead of <i>Thunderbird</i> if you want to exchange encrypted text and files, but not by email.</p>
With a Primary Password, your private key is encrypted in your *Thunderbird* profile and is only unlocked while *Thunderbird* is running.If your *Thunderbird* profile is stored in your Persistent Storage, then your private key is encrypted twice: once by *Thunderbird* in your profile and a second time by the encryption of the Persistent Storage.
If you already have an OpenPGP private key outside of *Thunderbird*, follow the instructions below to export it from *GnuPG* and import it into *Thunderbird*.