Why is Chrome not remembering my Missive username and password?
By default, Chrome should prompt you to save your username + password when you log in to Missive. If it does not, you should be able to click the little key icon at the top right and tell it to:
If you do not see this option, then check your Chrome settings in the Manage passwords section and make sure that 1. it is enabled, and 2. Missive isn’t listed under Never Saved websites: