# Thunderbird Configuration on Windows for Secure Mail [[Prev|thunderbird5]] | *step 6 of 17* | [[Next|thunderbird7]] ## Install the Enigmail Add-on 1. Under *Tools | Add ons* you can add new features the Thunderbird * You may find a recommendation for Enigmail or search for it * /!\ The version of Enigmail you need is 1.1.2 * Alternatively you may download Enigmail from a web browser, Do "Right-click, Save As..." this file: [[enigmail.xpi|https://addons.mozilla.org/en-US/thunderbird/downloads/file/92940/enigmail-1.1.2-tb-win.xpi]] * You can install downloaded \*.xpi files by clicking the *Install* button 1. Proceed to the [[Next|thunderbird7]] step [[!img tbird6.png align=left]]