WEBSITES USE YOUR CPU POWER FOR MINING !!!

websites like piratebay use your cpu to mine cryptocurrency like bitcoin litecoin etc...
Solutions :
extensions for google chrome

https://chrome.google.com/webstore/detail/no-coin-block-miners-on-t/gojamcfopckidlocpkbelmpjcgmbgjcl
OR
2)https://chrome.google.com/webstore/detail/minerblock/emikbbbebcdfohonlaifafnoanocnebl