Just submitted a cashout request for 0.00010133 BTC from CryptoTab!
CryptoTab is a Chromium-based browser that mines Bitcoin in the background.
It also has a generous affiliate program that is ten levels deep. The first two levels trigger a 15% and 10% commission on earned bitcoin, respectively!
Because the browser is Chromium-based, it has the familiar look and feel of Google Chrome.
Below is a video that describes how to use both Brave and CryptoTab to earn free cryptocurrency: for surfing the web!