For more detaileddocumentation, refer tovisit the [official <span class="application">Thunderbird</span> help [*Thunderbird* Support](https://support.mozilla.org/en-US/products/thunderbird) website.
For more documentation, visit the official [*Thunderbird* Support](https://support.mozilla.org/en-US/products/thunderbird) website.
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<p>Sending emails in HTML format is disabled by <span class="application">TorBirdy</span>. Emails receivEmails and feeds in HTML format are displayed in plain text by default and can become harder to read.</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.
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In the right pane, double-click onSelect the private key that you want to export and use inmigrate to *Thunderbird*.