Interesting posts, but they've strayed. The first article I saw on coin mining is here: "https://finance.yahoo.com/news/hackers-using-victims-computers-mine-cryptocurrencies-154915570.html". I saw another in CNN's finance web site, but I can't find it now. The first article says "Browser-based cryptominers can force your computer to mine monero even after you think you’ve left the offending site that launched the mining operation behind.". Also, some web site "recently began informing users who have ad blockers installed that their computers will be used to mine cryptocurrencies while they are on the site.". So web sites can *detect that your browser is using ad blockers; and * then run coin mining on your computer to make up for revenue lost by blocking their ads. That first article also talks about coin mining destroying hardware. The threat is real. Ad-blockers are not sufficient. So let's please get back to the original question. There are several coin-mining blockers available for Firefox. Based on your experience, which is most effective? I (and probably others) would welcome your advice on this. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx