PKI: Installing and Configuring GPG and Enigmail
1. Installing GNU Privacy Guard. The GNU Privacy Guard for
Windows can be found at http://www.gnupg.org/. As of this writing, the
current version was 1.4.3. You should use one of the mirror sites to
download the binary, as the main FTP site is often overloaded. Select
http://mirrors.rootmode.com/ftp.gnupg.org/ and select the
Scroll down the page and download and select the most recent version.
After you have downloaded GNU launch the GNU Privacy Guard installer and
follow the instructions. Note the directory where you installed GPG,
which you will need later.
2. Installing Enigmail for Thunderbird. You can download Enigmail from
either the Thunderbird extensions page at Mozilla’s website or the
Enigmail homepage. This link will take you to Enigmail's page
The current version as of this writing was 0.94, which needs to be saved
to your hard drive.
Open Thunderbird and select Tools the Extensions.
Click on Install, and browse to the location where you saved the
Thunderbird may warn you that the extension is Unsigned – that’s fine.
Click Install Now. After the installation is confirmed you will have to
restart Thunderbird before you can begin using Enigmail.
3. Configuring Enigmail for Thunderbird. After restarting Thunderbird,
you will see that an OpenPGP menu has been added to the menubar, as well
as a Decrypt button in the main toolbar. Only one additional task is
required to enable the use of GPG with Thunderbird, Select OpenPGP then
On the Basic Settings tab, you need to specify the path to the main GPG
executable file, which is gpg.exe. Browse to the directory where you
installed GPG, select the gpg.exe file, then click OK.
The Preferences window allows you to set other options, but setting the
GPG executable path is the only required step.