Mozilla adds option on Firefox to block hidden cryptomining scripts
Category: #tech  By Mateen Dalal  Date: 2019-04-12
  • share
  • Twitter
  • Facebook
  • LinkedIn

Mozilla adds option on Firefox to block hidden cryptomining scripts

The browser would leverage a new blacklist of websites which are recognized as using scripts for cryptomining or fingerprinting

Reports suggest that Firefox’s upcoming release would provide users the option to block two increasingly common nuisances on the web, cryptomining scripts and browser fingerprinting.

Mozilla has recently revealed that Firefox Beta 67 and Firefox Nightly 68 will include protection against both cryptomining scripts and fingerprinting threats. This open source web browser would leverage a new blacklist of websites which are recognized as using scripts for either purpose. The blacklist was composed by Disconnect, a VPN maker which is known for its anti-tracking efforts.

Apparently, these types of scripts are neither helpful nor beneficial to browser users. Through fingerprinting, advertising software silently track users around the web and gain from the activity and interests of the user. On the other hand, freeloading opportunists have found it lucrative to plant cryptomining JavaScript on websites and secretly scrounge CPU of a visitor to mine cryptocurrency.

Web-based cryptomining accelerated after the launch of the JavaScript-based Coinhive, which was established with the purpose to challenge the model of online advertising business. But it was rapidly adapted for cryptojacking via browsers so that it mines for cryptocurrency on behalf of someone else.

Sources familiar with the matter informed that Mozilla is implementing a multi-pronged approach to fingerprinting termed as Letterboxing. It aims to prevent a technique which is used to tag a browser, such as measuring window size of a browser, for continued tracking across websites without the help of cookies. The second part is a blacklist of sites that are known to utilize fingerprinting scripts and sites which use cryptomining scripts.

Supposedly, the script-blocking feature is now becoming a part of Firefox's 'Content Blocking' settings that are available within the 'Privacy and Security' tab in Preferences.

In 'Content Blocking', Firefox users can check boxes for blocking either or both Fingerprinters and Cryptominers. Once it is enabled, Firefox will block any type of scripts that have been acknowledged by privacy tool Disconnect to participate in fingerprinting or cryptomining, sources mentioned.

  • share
  • Twitter
  • Facebook
  • LinkedIn


About Author

Mateen Dalal    

Mateen Dalal

Mateen has completed his Bachelor’s degree in electronics and telecommunication engineering, post which he lent his proficiency to the industry, working as a quality and test engineer. Drawn intricately toward the field of content creation however, Mateen soon switc...

Read More

More News By Mateen Dalal

Stocks of luxury fashion houses raise in response to China’s reopening
Stocks of luxury fashion houses raise in response to China’s reopening
By Mateen Dalal

Luxury fashion houses dependent on Chinese customers reportedly saw a hike in stocks as China reopens, however, those clients may not necessarily be purchasing the goods elsewhere. In the past, wealthy Chinese customers would frequently buy person...

Microsoft investigates Teams and Outlook outage that left users disrupted
Microsoft investigates Teams and Outlook outage that left users disrupted
By Mateen Dalal

Microsoft, the U.S.-based technology frontrunner, reportedly investigating an outage that prevented thousands of customers from accessing services like Teams and Outlook. Apparently, the tech giant did not disclose the number of users that were im...

DeHaat secures $60 million in funding, tops $700 million valuation
DeHaat secures $60 million in funding, tops $700 million valuation
By Mateen Dalal

Indian agritech firm DeHaat has reportedly raised $60 million in a new funding round as it looks forward to strengthening its footprint in the country and touching break-even profitability in two years. For the unversed, the startup provides a range ...