webpg.org

WebPG is a browser-based suite and extension designed to bring GnuPG/PGP cryptography to web and email applications. It originated as a Mozilla-centric project (with add-ons for Firefox, Thunderbird, and SeaMonkey) and was associated with developer Kyle L. Huff, who packaged WebPG as an extension to enable generating, managing, signing, and encrypting data within compatible Mozilla-based environments. The project was discussed and documented around 2013–2014, and its official page at webpg.org described its goals of making cryptographic methods more usable and accessible within the browser. (services.addons.thunderbird.net)