The Point.
btc results from this browser are not very profitable if you do not have a reference and only with 1 device.
to be able to get a lot of decent btc, you must continue to share referral links and use multiple devices.
Mining from a computer is never profitable at these low prices, no matter what service or app is used. It is not a fault of CryptoTab.
It is however a great way to earn extra BTC if you will be using the device anyway and will have it powered on and running. For example, if you have MT4 open with an EA running, why not just have the CryptoTab open and mining as well? It is not using any extra power and will not slow the EA down.