Windows Build Prerequisites

Search…

This page has all the information you need to get your Windows development environment set up and ready to hack on Thunderbird.

The Basics
64-bit Windows
You will need to be running a 64-bit version of Windows in order to build Thunderbird. To check this in Windows 10, open the start menu and click on the gear icon on the left-hand side of the menu. This will open up the "settings" window. Click on the "System" option and then scroll down to "About". Click on the "About" option and on the new screen next to "System Type" you should see: "64-bit operating system"
How System type appears in the About Settings page.
Visual Studio
In order to get the necessary libraries in order to build Thunderbird, you will need to install Visual Studio - an IDE from Microsoft. Download the free community edition here.
During installation make sure the following workloads are checked:
"Desktop development with C++"
"Game development with C++"
MozillaBuild Package
Finally, download the MozillaBuild Package from Mozilla. Accept the default settings, in particular the default installation directory: c:\mozilla-build\. On some versions of Windows an error dialog will give you the option to ‘reinstall with the correct settings’ - you should agree and proceed.
Once this is done, creating a shortcut to c:\mozilla-build\start-shell.bat on your desktop will make your life easier.
NOTE: You will need to run the start-shell.bat to open up the shell and perform the commands listed in other parts of this guide.
Getting the Code
Once you have run start-shell.bat, you will need to grab the source code if you haven't already.
Get the latest Mozilla source code from Mozilla's mozilla-central Mercurial code repository, and check it out into a local directory source (or however you want to call it). Then, get the latest Thunderbird source code from Mozilla's comm-central Mercurial code repository. It now needs to be placed inside the Mozilla source code, in a directory named comm/ (this is inverse from Thunderbird 59 and earlier):
hg clone https://hg.mozilla.org/mozilla-central source/
cd source/
hg clone https://hg.mozilla.org/comm-central comm/
Mach Bootstrap
In the source directory run the following command to get additional dependencies needed to install Thunderbird:
./mach bootstrap
You will be presented with the following options:
Please choose the version of Firefox you want to build:
  1. Firefox for Desktop Artifact Mode
  2. Firefox for Desktop
  3. GeckoView/Firefox for Android Artifact Mode
  4. GeckoView/Firefox for Android
Please choose option 2 to proceed with a successful build.
This action will install all the remaining libraries and dependencies necessary to build Thunderbird locally.
Make sure to restart after installing all the requirements, or Thunderbird might encounter a build error.
Building Thunderbird
Now that you have the prerequisites for Windows, make sure you have the source code via the commands on the Getting Started page:
Getting Started
Then you can follow the instructions on the Building Thunderbird page:
Building Thunderbird

Contributing to Thunderbird - Previous

Building Thunderbird

Linux Build Prerequisites

Last modified 1yr ago

Export as PDF

Copy link

Edit on GitHub

On this page

The Basics

64-bit Windows

Visual Studio

MozillaBuild Package

Getting the Code

Mach Bootstrap

Building Thunderbird