*Thunderbird* willis no longer be included by default since Tails 7.8 (May 2026)
and later.

*Thunderbird* is no longer included by default since Tails 7.8 (May 2026).

A new version of *Thunderbird* is released in Debian shortly after each Tails release, because both *Tails* and *Thunderbird* follow the [[release calendar of *Firefox*|https://whattrainisitnow.com/calendar/]]. As a consequence, until Tails 7.5 (February 2026), the version of *Thunderbird* in Tails was almost always outdated, with known security vulnerabilities.

Tails also tries to install as additional software the language package that corresponds to the language of your first session with Tails 7.5 or later, if it exists. To use *Thunderbird* in another language, see how to [[useing *Thunderbird* in another language|thunderbird#language]].

Tails also tries to install as additional software the language package that corresponds to the language of your first session with Tails 7.5 or later, if it exists. To use *Thunderbird* in another language, see [[using *Thunderbird* in another language|thunderbird#language]].