Upcoming Firefox update blocks in-browser cryptojackers

By: Costea Lestoc
2 minute read

Some of the most ardent Internet problems include the fact that there are more and more in-browser miners aka cryptojacking scripts. Peter Dolanjski, Firefox’s Product Manager, addressed the plans to solve the problems, also revealing the recent publishing of Firefox’s feature roadmap for 2018.

Addressing the cryptojacking issue

Bleeping Computer had an email interview with Dolanjski and asked him about the cryptojacking matter. He said that Firefox’s Tracking Protection feature is already able to block some of the most critical cryptojacking scripts and individual control is explored as well. Individual control would allow users to specifically block various cryptojacking scripts.

The anti-cryptojacking protection feature could be included in Firefox’s forthcoming ad filter system that we already know Mozilla is planning to add to the browser by the end of the year. This will protect users from the annoying advertising landscape that fills the web these days.

Firefox Tracking Protection blocks two essential domains

The cryptojacking blocking system is currently hidden in Firefox Tracking Protection which is a feature that deals with preventing the browser from loading scripts from abusive add trackers. Currently, the Firefox Tracking Protection is powered by the Disconnect.me blocklist which is a list of domains that are associated with advertisers that abusively and secretly track users across various sites.

It seems that since November 2016, the list has also been blocking two of the most popular companies that provide in-browser mining services: Coinhive and Crypto-Loot.

The protective feature is not active by default

It’s a pity that most users had no idea that this cryptojacking blocking feature was included in the Tracking Protection features all this time. The feature is not enabled by default, and it’s only active when users start a private browsing window. Firefox 57 users have the ability to enable the Tracking Protection anytime, but this feature is still not optimized for general browsing.

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