Bulgarians created a free extension for blocking scripts which mining cryptocurrency
The original article is here: http://newbusiness.bg/news/view/5637/baylgari-sayzdadoha-bezplatno-razshirenie-za-blokirane-na-skriptove-za-dobiv-na-bitkoini
CryptoStop- this extension blocks cryptocurrency mining scripts and protects you from such websites.
https://chrome.google.com/webstore/detail/cryptostop/amncjiblhpopmnmcliddnlghifglabbb
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