Google yesterday announced that it will update the browser Chrome to block heavy ads. Marshall Vale, Product Manager at Google, wrote that Chrome will interrupt heavy ads with an error page when the ad reaches the threshold of 4MB of network data, or 15 seconds of CPU usage in any 30 second period, or 60 seconds of total CPU usage.

Google plans to launch the ad blocker for heavy ads by end of August.

According to Google, 0.3% of the ads exceed this threshold today.

Google says heavy ads consume a disproportionate share of device resources, such as battery and network data, without the user knowing about it.