Firefox is known for its great protection againts cookies and all other tracking files.
That is why they have introduced their protection to the mobile devices as well.
The app is called Total Cookie Protection and it prevents any cross-site tracking.
The app works like this: the app stores the cookies into a virtual “cookie jar” and prevents websites from accessing information about your online behavior.
As we all know some websites won’t work properly with the browser blocking access to the cookies, that is why firefox uses SmartBlock and other related features to keep said websites operational.
It is a welcomed addition, which helps us feel more secured.