Firefox monitor login fails - Unknown error or You need to be logged into your firefox account
Using firefox to sign-in to my monitor account gives either an unknown error or "you need to be logged in to your firefox account" and loops back to the login page. I am logged in to my ff account (for sync). Tried in MS Edge and all works fine so not a credentials issue. I have 2 factor auth setup on my ff account.
Additional System Details
Cisco Jabber Guest Ecosia Facebook Container
- User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0