Mozilla Rolls Out Native Ad Blocker for Firefox on iOS

Mozilla has introduced a native ad blocker for its Firefox browser on iOS, a feature designed to automatically filter out most online advertisements and trackers without requiring third-party extensions. The experimental tool, documented in a support page published on August 15, 2026, is being gradually rolled out to users and is disabled by default.

The ad blocker operates at the network level, using a filter list based on EasyList to identify and block resources from third-party advertising networks, ad-related trackers, popups, and overlays before they load on a webpage. Mozilla states this approach aims to reduce visual clutter, save data, and enhance user privacy by limiting tracking scripts. However, the company cautions that the filter is not comprehensive, and some ads may still appear depending on the website's advertising technology.

Notably, the feature includes deliberate exceptions. It will not block advertisements shown on search engine results pages, including those from providers like Google, Bing, and DuckDuckGo. Furthermore, it will not filter sponsored content displayed on Firefox's own Home or New Tab pages. Mozilla acknowledges that these are sources of...