There's a new ad-blocker coming to the app store. Today, Mozilla is launching Focus, a new program taking advantage of iOS 9's content-blocking API. Unlike broader blockers like Crystal or Peace, Focus is designed to give the user in-depth control over what to block from a given page, with different settings to block ads, analytics, and tracking through social networks like Facebook. The app is not yet available from the app store, but is expected to arrive today at this link....
