Why is SPIN asking for the Camera and Microphone permissions?
SPIN Safe Browser is built on Mozilla's open source code (same as Firefox) so it's a fully functional industry standard browser. Part of this means that when SPIN comes across a website (such as Facebook that allows you to post pictures directly from your camera) then SPIN will prompt the user if they want to allow SPIN to have the permissions for the Camera and Microphone.
These permissions, if granted, are only then used in the context of the site's actions (such as posting a live picture onto Facebook.)
If you granted SPIN permissions by accident and want to revoke them, do the following:
1. Go to Android Settings, then Apps and select SPIN Safe Browser.
2. Go to Permissions and Toggle Off the permissions that you do not want SPIN to have.