Question 1:
Is this the correct way to to disable sandbox mode in the new facebook app developer dashboard?
a) Go to the \"Status & Review\"
Here is the step by step guide:
Apps
)Status & Review
(Left Sidebar)By default it will on
for sandbox mode if you are creating new app.
or you can open url like https://developers.facebook.com/apps/YOUR-APP-ID/review-status/
You can see it in the App's Settings then Basic Tab, then fill up the "Contact Email" which is in the right side.
https://developers.facebook.com/apps/xxxxxx/settings/ change xxx to your app id