Mozilla has taken the native ad-blocking feature for Firefox on
iOS out of the experimental stage and is now carrying out a gradual rollout. The feature is switched off by default and does block a large number of ads, but it will not block ads that appear on search result pages or on sponsored content displayed on Firefox's home and new tab pages.
Mozilla has incorporated the blocker directly into the browser since
Apple requires all iOS browsers to use its WebKit rendering engine instead of their own backend. The company has not set out a timeline for a general release to all iOS users.
Mozilla states that it has no intentions of extending its built-in ad blocking to its desktop or Android browsers.