Issue title: [bug]: Conflicting root certs in Firefox
 Issue body: When I try to trust two 030 embassies in FF, the second embassy does not work after I add its root CA. Then when I restart Firefox, the *first* root CA stops working. This is the first embassy, after installing the second root CA:
<img width="973" alt="Screen Shot 2022-01-13 at 1 21 43 PM" src="https://user-images.githubusercontent.com/7445670/149395472-404eb978-0d14-4d8c-adc1-0bf66449b75b.png">


 Comments: 
 Comment 0: @chrisguida try clearing all site data before refreshing. I think this is just your browser protecting you from CA malleability
 Comment 1: Cleared cache for embassy local address, restarted firefox, no dice, same result
{'source': 'GithubIssues', 'repo_name_with_owner': 'Start9Labs/embassy-os', 'issue_id': 1102215057, 'repo_stars': 231.0}