GPG, in conjunction with the Enigmail extension, allows you to sign and encrypt your email with Mozilla Thunderbird, Portable Edition and SeaMonkey Portable. GPG 1.4.15 Rev 2 has been released as an add-on for both portable apps and updates GPG to the latest version. As an add-on, GPG is not yet automatically updated by the PortableApps.com Platform, so it would be downloaded and installed manually. Get GPG for Mozilla Thunderbird, Portable Edition or GPG for SeaMonkey Portable today!
Revision 2: An older version of GPG was inadvertently included with the original release. Revision 2 fixes this issue. Our apologies for the inconvenience.