Thunderbird (Flathub)

org.mozilla.Thunderbird (aka net.thunderbird.Thunderbird)

Thunderbird for Flatpak installation instructions are available on the Thunderbird app listing at Flathub.

Known issues

Non-Flatpak packaging issues should be reported upstream.

Migration from pre-exisiting non-Flatpak installations

In order to migrate your profile from an existing non-Flatpak installation and preserve all settings, please copy or move the entire ~/.thunderbird directory into ~/.var/app/org.mozilla.Thunderbird/.thunderbird.

In case Thunderbird opens a new profile instead of the existing one, use the terminal to execute flatpak run org.mozilla.Thunderbird -P, then select the right profile and confirm that "Use the selected profile without asking on startup" is checked.

Language support

• [#3] All supported locales are available from the org.mozilla.Thunderbird.Locale Flatpak extension. One locale that matches the host OS locale will be installed and selected by default. For instructions on how to enable more locales for your Flatpaks, visit the Flatpak configuration documentation.

• [#90] Dictionary availability is much the same, however they can also be downloaded manually from Thunderbird.net and installed from the Menu Bar

  Tools > Add-ons > Extensions > Install Add-on From File. You will need to restart the app in order to finalize the installation.

New mail notifications

• [#11] To enable new mail notifications:
  1. Menu Bar

     Edit > Preferences > Advanced > General > Config Editor…, and set mail.biff.use_system_alert to true (default), or

  2. Menu Bar

     Edit > Preferences > General > Customize… at "Show an alert" and set "Show New Mail alert for:".

• [#79] Alternatively, you may set mail.biff.use_system_alert to false, which will make notifications non-native, but clicking on them will open the mail item in Thunderbird.

Wayland

• [#75] To enable the experimental Wayland compositor backend (assuming the desktop session is also Wayland), execute: flatpak override --user --env=MOZ_ENABLE_WAYLAND=1 org.mozilla.Thunderbird.

Smartcard

• [#51] For SmartCard support, you need to be running Flatpak v1.3.2 or newer.

Other Flatpak issues unresolved yet by upstream

• [#123] Opening the Profile Directory doesn't work (upstream bug report).