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Notice of Non-Affiliation and Disclaimer

Portapps is not affiliated, associated, authorized, endorsed by, or in any way officially connected with Thunderbird™, or any of its subsidiaries or its affiliates.

The official Thunderbird™ website can be found at

The name Thunderbird™ as well as related names, marks, emblems and images are registered trademarks of their respective owners.


Thunderbird™ portable app made with Portapps.
A free and open-source email client, news client and RSS client developed by the Mozilla Foundation.

Latest version 68.2.1
Internal release 16
Last updated 2019/11/03
Maintainer CrazyMax
License Mozilla Public License 2.0


Download and install the latest portable setup where you want then run thunderbird-portable.exe.

If you have already installed Thunderbird™ from the original setup, move the following files :

  • %APPDATA%\Thunderbird\Profiles\*.default\* to data\profile\default

Then run thunderbird-portable.exe and remove Thunderbird™ from your computer.


For an upgrade, simply download and install the latest portable setup.



Some modifications have been made in this version of Thunderbird™ through distribution preferences to ensure portability :

  • Multilingual : All languages are included in app/langs and can be enabled in config file (see below).
  • Disable updater : Thunderbird™ updates are turned off.
  • Don’t check default mail client : Stops Thunderbird™ from checking if it is the default mail client at startup.
  • Profile: Profile path is overrided to data\profile folder.
  • Disable WinSearch integration: Don’t use Windows Search to search for emails.
  • Add-ons: Disable compatibility checking.
  • ‘Know your rights’: Don’t show on first run.
  • WhatsNew: Don’t show WhatsNew on first run after every update.
  • Crash reporter: Disabled.
  • Calendar: Official multilingual Calendar extension used to handle locales switching.
  • GnuPG Agent: Automatically set GnuPG Agent path to be ready to use with Enigmail extension (see below).


Thunderbird™ portable can be configured through the main YAML configuration file :

  multiple_instances: false
  disable_telemetry: false
  gnupg_agent_path: ""
  locale: en-US
  • multiple_instances : Allow multiple instances (default false).
  • disable_telemetry : If enabled, telemetry is not uploaded (default false).
  • gnupg_agent_path : Path to GnuPG agent gpg.exe. If empty, Portapps will search in PATH or will use the embedded version.
  • locale : Locale located in app\langs can be used to change UI language without .xpi extension (default en-US).

Known issues

Here is the list of known issues with this portapp:


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