After nine months in development, Mozilla recently released a preview of Firefox for iOS to New Zealand, Austria and Australia, with it slowly rolling out to more select countries over the coming weeks. Firefox for iOS is bringing your synchronized bookmarks, history and other information associated with your Firefox account to the iOS platform. Moreover, it is also going to record pages you visit in your history and sync these back to your Firefox on Windows, Linux, Mac, and even Android devices.

From the start, we also made sure that Firefox for iOS supports multiple features of the iOS platform. Here are some highlights:

VoiceOver

Firefox for iOS supports VoiceOver. Since Apple’s app store rules force us to use the Safari rendering engine, that is accessible anyway. But we also made sure the browser’s UI, Settings views and other features all talk well with VoiceOver. Moreover, we also implemented audio cues to indicate page load progress and finish. Those of you using NVDA might feel a certain familiarity with these sounds.

https://www.marcozehe.de/2015/09/10/accessibility-features-in-firefox-for-ios/