Besides the revamped built-in VPN service, one of the biggest new features coming to the Opera 50 web browser, which should hit the streets in the coming days, is an anti-Bitcoin mining functionality that won’t allow cryptocurrency miners to steal your CPU power while you’re browsing the Internet. It’s a very good feature and it should be implemented by default in all web browsers available on the market. NoCoin is the name of the cryptocurrency mining protection feature that comes with Opera 50, and you can find it in the Settings panel under the ad blocker. However, the anti-Bitcoin mining functionality is dependent on the built-in ad blocker mechanism, which needs to be enabled as well if you want to prevent cryptocurrency mining websites from secretly mining for Bitcoins using your computer.