From the website where you see your name, Notifications, My profile, press Settings this will bring up your settings. Have a look down the left hand column you will see My Account and under this Edit email and password. Press this and it will load with the page to change password. Then just save changes. Sent from my iPad using iPF
No not possible as far as I know. You can change your avatar here though. And now that I've said that, I have to tell you how. Just long press your avatar and follow the prompts, very easy! Sent from my iPad using iPF