Firefox for iOS adds optional built-in ad blocker
Mozilla has launched a built-in ad blocker for Firefox on iOS, allowing users to block most third-party ads and trackers directly within the browser without needing a separate extension. The feature uses Apple's WebKit Content Blocker technology alongside the EasyList filter, and follows several weeks of testing. It brings Firefox in line with rival browsers such as Brave, Vivaldi and Opera, which already offer similar built-in ad-blocking tools on iOS.
The ad blocker is disabled by default and must be switched on via Settings > Browsing > Ad Blocker, though it can also be toggled on or off mid-session through the site menu. Mozilla notes the tool has limits: ads served directly by a website, those appearing in search results, and Firefox's own sponsored shortcuts and new-tab content will still be shown.
- Firefox on iOS now has a built-in ad and tracker blocker
- Feature is off by default; enabled via browser settings
- Some ads, like search results and sponsored content, still get through
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Firefox is a web browser made by Mozilla, a non-profit organisation that also develops other internet software. On iPhones and iPads, browsers use Apple’s WebKit technology to display websites, and Apple’s rules limit how browser add-ons can work.
Ads and tracking tools are often supplied by companies other than the website being visited. Blocking some of them can reduce adverts and limit data collection, though it can also affect how websites work and does not remove every advert.
Other iOS browsers, including Brave, Vivaldi and Opera, already have built-in ad blocking. Mozilla’s option is off unless users enable it, and it does not block ads placed directly by a site or certain sponsored content in Firefox.
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Originally published by The Verge as “Mozilla launches ad blocking for Firefox on iOS”.