Use a Crypto browser and several websites helps you to immediately earn Bitcoins.
If you are indeed referring to what @
Husna QA mentioned earlier, then you should know that majority of its reviews are quite bad:
Trustpilot reviews- Looks can be deceiving!hard to mine Bitcoin using the CPU.
and Brave browser does not have a feature for mining bitcoin.
For what it's worth, "CryptoTab Browser" also doesn't have that feature
[users mine Monero and they just convert it to BTCitcoin]!