If u want to mine with PC better use Nicehash to mine it pays much more and secure , its since 2013
I'd be careful when using Nicehash mining service because I remember back in 2017 when they got hacked and thousands of Bitcoin were stolen. While they worked hard to refund most of the affected users, I wouldn't put too much into a venture like this. I used to patronize miming farms like that in the past but they have very little profit margin since you've to cover other fees which would be deducted from what would be your payout which is small even before the deduction takes place.
Someone on social media introduced me to CryptoTab Browser, that I will be using the browser to mine and earn Bitcoin. With the little knowledge I gathered from this forum, I was able to tell him that bitcoin requires complexity of computing system with high energy consumption in order to be mined. Which a smart phone cannot do. He insisted that he and his friends have been mining and earning BTC in the app. He went further to show me his BTC balance he earned.
Please, can someone tell me what's actually going on in the browser, as I strongly believe it's not Bitcoin mining that is happening there.
Instead of using such a service and risk putting your laptop to a host of vulnerabilities, I would suggest you put that time into something else. CryptoTab app might be paying (I've heard about it from my friends in the past) but I'm sure the payouts are nothing to write home about.