So you are here to know how to block cryptocurrency mining in your web browser. But before don’t you want to know some of facts about cryptocurrency. If you don’t want to know then feel free to skip this section otherwise keep reading.

Cryptocurrency is currently one of the hottest topics on the internet. It is basically a digital or virtual currency which are made using encryption techniques to regulate the generation of units of currency and authenticate the transfer of funds.

Cryptocurrency is decentralized in nature and totally anonymous because of it Cryptocurrency is widely used for making payments that can’t be tracked by any authorities.

Now Cryptocurrencies are very popular among people. It generates a curiosity in everyone minds. People want to know about it as much as they can.

In such a scenario, one term is coined which is crypto mining. If you heard about it then definitely you have done some research on it and knows how it works.

Now, what if we tell you that many websites you are surfing might be using your system resources to mine cryptocurrencies? Isn’t shocking?

Know that many website owners especially who runs famous sites use cryptocurrency mining scripts which use users CPU power to mine cryptocurrency. This might be shocking for you but is true.

This practice is highlighted when one of the most popular torrent website The Pirate Bay caught red-handed using it. The Pirate Bay was spotted using Monero cryptocurrency miner on their sites. After this official confirms that they are using it to maintain their server cost.

How To Block Cryptocurrency Mining In Your Web Browser

The shocking thing is such practice is used by many sites but the seriousness of it has been revealed after sites like The Pirate Bay caught using it. This practice is also in question because site owners are using their resources without telling them.

Now you might be thinking why your system gets slow down when you surf any particular websites. No need to blame your browser or your system here.

Anyways this practice gave an idea to many developers, developers who want you to save your system from such activities.

Today we will tell you how you can easily block cryptocurrency mining in your browser but before moving further you need to determine whether your system is being used or not. To find out whether your system is already targeted follow below steps:

How to Find If Your System is Secretly Mining Cryptocurrency

Like ransomware, bitcoin mining malware is gaining lots of popularity. It is pretty easy to find out if your system is being used to mine cryptocurrency.

The Pirate Bay users find out huge spike in CPU usage when they visit the website, that how The Pirate Bay tactics have been revealed. You can do the same process to find out the culprit website.

How To Block Cryptocurrency Mining In Your Web Browser

Just check the CPU usage when you open suspected website. Well, this is not that simple because some of the scripts are able to use your CPU resources even if you have closed the tab or not using the website.

You can track the things in more detail with Windows Task Manager. Open it by using command Ctrl + Alt + Delete. If you are a Mac user then use Command + Space or simply search for Activity Monitor.

How To Block Cryptocurrency Mining in Your Web Browser

No Coin

No Coin is a Chrome extension which is one of the efficient ways to block cryptocurrency mining in your web browser. It is free to download and use.

It is an open source extension on which you can trust without any doubt. It let you control how sites are interacting with your browser.

As soon web page has been load it will show you whether the site is using any mining script or not. You can either choose to surf the website or simply go back.

If you need to surf the website which has been detected as culprit one then you can whitelist it for the particular time period.



minerBlock is another great Chrome extension which helps you to block cryptocurrency mining. Like No Coin it is also an open source extension. This extension keeps adds sites which are using mining scripts.

Block Coin Mining Sites in Hosts File

If any of Chrome extension is not working for you then you can block sites manually especially when you know which sites are using your CPU resources.

Simply editing the hosts file your browser won’t be able to connect the sites.

If you are using Linux then you need run following command:

sudo nano /etc/hosts

It will open a document where you need to add at the end of the document.

If you are using Windows then simply go to C:\Windows\System32\drivers\etc and edit the hosts document and add at the end of the document.

Change the with the site which you want to block. To add more sites just add the same ‘ site name’ in the next line.

Use AdBlocker


Hope you are already using Adblocker. If yes then you might be happy to know that you can block cryptocurrency mining without installing any other add-ons.

All you need to do is just block the culprit domain using Adblocker. Here is how it’s done.

Open Chrome and go to the installed extension list. Look for Customize option, from her go to Block an ad by its URL. In the text box enter the URL. Simple!

NoScripts for Firefox

If you are a Firefox user then we have a great extension for you too which is NoScripts.

Before using it as your weapon to block cryptocurrency mining in your web browser know that it is one of the most aggressive extensions which blocks all the websites to run scripts.

NoScripts is not an idle solution for you especially if you love to surf different websites. If you want to stick with Firefox then we recommend you to follow the blocking hosts files technique.

Block CoinHive in Opera

If you are using Opera then you will be glad to know that company already added a functionality which blocks CoinHive mining techniques and scripts.

When you use Opera it will make sure that your website will not go crazy when you use any site which uses coin mining scripts.

You can find this option in Settings (Preferences on macOS) > Basic > Block ads and under the Recommended lists of ad filters.


If you are not very sure about installing any extension then we recommend you to download and install Malwarebytes like a great antimalware solution.

The best thing about using software like antimalware is it will not just protect your browser but protects your all the system.

Malwarebytes is a paid tool but knows that it is worth buying the tool. You can judge it whether it is for you or not by simply trying it for free for 30 days.

Should You Support Cryptocurrency Mining or Not?

Today it is one of the biggest questions whether you should support cryptocurrency mining or not. Well, it totally depends on you.

Before moving forward know that your CPU resources are compromised and in this, if your favorite website tells you clearly about then you can support them as they need to maintain their server.

A good and genuine site will show you how many resources they will need from you. If you found such website then you can freely support them.

Hope we have helped you to block cryptocurrency mining in your browser. If you have any question in your mind related to blocking cryptocurrency then feel free to let us know in the below comment section.


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