Passwords are best kept off the browser
Yes it is.
For example, an antique paper is better.
Yup, much as I hate the idea of having passwords recorded anywhere but in my head, I realized that offline storage and physical security trumped any kind of on device storage. When you take the bare minimum precautions of unique 20+ random character passwords for each site to gain any reasonable hope of security, they become too difficult to remember all the time.