Chrome will soon block resource-draining ads. Here’s how to turn it on now

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Chrome browser users take heart: Google developers are rolling out a feature that neuters abusive ads that covertly leach your CPU resources, bandwidth, and electricity.

The move comes in response to a swarm of sites and ads first noticed in 2017 that surreptitiously use visitors' computers to mine bitcoin and other cryptocurrencies. As the sites or ads display content, embedded code performs the resource-intensive calculations and deposits the mined currency in a developer-designated wallet. To conceal the scam, the code is often heavily obfuscated. The only signs something is amiss are whirring fans, drained batteries, and for those who pay close attention, increased consumption of network resources.

In a post published on Thursday, Chrome Project Manager Marshall Vale said that while the percentage of abusive ads is extremely low-somewhere around 0.3 percent-they account for 28 percent of CPU usage and 27 percent of network data.

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