merge two accounts

Helo, I might have previously set up an account in Firefox. However, I accidentally triggered another account. Now I wonder is there a possibility of merging accounts. In fact there is little more can occur. Two accounts can clone between each other, so that way if I like a friend, I can just give them my account. Or if I am a sys admin, I can give access to all of the people within the org, to have access to a generic account to bootstrap. Similar to the guest account and then everyone can start their private at that point.