Adblock Plus releases filter that prevents sites from using the user's computer to covertly mine cryptocurrencies, available on Chrome, Safari, Firefox, Android
Emil Protalinski / VentureBeat :
Context & Ripple Effects
Adblock Plus's business has always run on negotiated exceptions: the 2015 sale of the rival Adblock extension folded it into the Acceptable Ads whitelist program, so blocking and permitting have long been two sides of the same product. This release widens the remit from advertising to any covert use of the visitor's machine — hidden cryptocurrency miners are now a filter category, shipped across Chrome, Safari, Firefox and Android.
First-order effects
- Sites running in-browser miners lose that revenue stream for Adblock Plus's user base on all four platforms, while readers get their CPU and battery back without switching browsers.
- Filter-list maintainers gain veto power over a new class of page behavior, extending Adblock Plus's authority beyond ads into how sites may use visitor hardware.
Second-order effects
- Publishers squeezed by ad-blocking respond by making mining explicit and optional — months later, Salon began testing Monero mining as an opt-in alternative to ads for ad-block users, the consent-based version of what this filter bans.
- Rival blockers face pressure to match the capability, turning filter updates into a feature race over non-ad abuses rather than just ad rules — a path Adblock Plus itself continued down when it added blocking of social media button tracking.
Third-order effects
- As filters govern more than advertising, the trust perimeter shifts to list providers — a risk realized when researchers showed Adblock, Adblock Plus and uBlock filter lists could have let their providers run arbitrary code inside pages ([[a:940638]]).
- If the pattern holds, browser extensions harden into a de facto policy layer deciding what web content may do with client hardware, operating between sites and users outside any formal regulatory framework.
The trend: Content blockers are evolving from ad filters into general-purpose governors of what websites may do with visitors' computers, with filter-list maintainers emerging as the gatekeepers.