Google has changed how new app permissions are applied when updating Google Play apps. Previously, automatically updated apps displayed explicit details and required user confirmation when a new version gained additional privileges. Google Play no longer displays the addition of new privileges if a user has previously accepted any other permission in the same category as the new permission. This makes it possible for an app to sneak in permission changes without the user realising making the Android platform less secure.
I still won't connect to or use Facebook on my tablet, but Tinfoil sounds interesting. I refuse to install any social media app. They're like glitter of the app world, and glitter is like herpes of the art world.