''<p>jetimam [[#question-1386274|said]]</p>'' <blockquote>Hey everyone, I don't know if I am missing something here but on my Windows 10 machine I am seeing the E2EE tab in Account Settings (as I should), however, I can't see it on my MacBookPro 2020, M1. I could see it before but now I can't... I wish to add a key pair to one of my accounts but I can't. I tried using the key manager and generated a key pair for the account I want but when I draft an email it doesn't let me use OpenPGP... </blockquote> I have just realized that [https://addons.thunderbird.net/en-US/thunderbird/addon/owl-for-exchange/ Owl for Exchange] was the reason for the E2EE tab disappearing. Does anyone know why the addon is doing this?