OK I have been trying to stop Firefox from adding proton.me to the Manage Cookies & Site Data folder. Let me be clear this is happening when I start the computer WITHOUT ever opening Protonmail or touching the desktop shortcut to login to Protonmail What I have tried Under Manage Exceptions I added https://account.proton.me and set it to Block all that did was prevent me from logging in to protonmail OK lets try Allow for Session and YES I did uncheck Site settings What happens is Protonmail still shows up in Cookies & Site Data Folder AFTER doing correct closing of Firefox with the X in the upper right I have done this twice. Real Question why do you need to add the cookie to FF or why are you not deleting the cookie when I close FF and better yet I have not touched Protonmail and YOU are adding a cookie this one makes me real unhappy