Firefox blocks cryptomining, bitcoin-based malware without your knowledge


The browser Mozilla, Firefox, is implementing a feature to block potential attempts to access a user’s computer to start cryptomining, ie the minting criptovalute through pirated software.

From April 17, users who are using the Beta or Nightly versions of the browser will be equipped with the functionality to automatically block encrypted and potentially dangerous scripts.

This update will prevent attackers from exploiting user data to perform hidden and illegal cryptocurrency mining or block all scripts that try to collect screenshots of computer configurations that can be used to track internet usage.

” In collaboration with Disconnect, we have compiled lists of domains that perform fingerprinting (data capture that identify the user online: fingerprints, ed) and crypto-mining scripts,” reads the announcement by Mozilla reported by The Next Web. ” Now in the latest Nightly and Beta versions of Firefox, we offer users the ability to block both types of scripts s part of our security suite .”

At the moment the scripts identified and blocked by Firefox are about 20 including CoinHive, Jse and MineXmr. Users using the Beta or Nightly versions of Firefox can activate the new function by accessing the main browser menu, clicking on ” preferences ” and then selecting ” privacy and security “. Once you have accessed this tab under the ” content block ” item, select the ” custom ” option and include the ” crypto-miners ” and ” fingerprinters ” items.

If a site were mistakenly placed in the blacklist, the user can report it to the Firefox team simply by clicking on the shield icon next to the url and selecting ” report a problem “.

As mentioned above, this feature will be available on the two browser test versions in order to improve its performance to make it operational by default in the next version of Firefox available for all users.


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