I can see why they're calling it a beta release. The UX during creating a profile on developer.mozilla.org has several rough edges. For example: 1. Clicked "

I can see why they're calling it a beta release. The UX during creating a profile on developer.mozilla.org has several rough edges. For example: 1. Clicked "Sign In" and successfully create a Persona account. 2. Created a profile on MDN, with the wrong user name (oops). 3. Cancelled my Persona account in a separate tab. I'm still logged in on MDN and the "Sign Out" button doesn't work now. After 5-10 minutes, I get a "Permission Denied" page, which is correct, but not exactly the expected workflow. Also, LastPass doesn't seem to play well with Persona, but I'm hopeful it will in the future.