Yahoo has confirmed that it has stopped some of its user from accessing their email if they are using ad-blocking software in their browser. Users, mainly in the US, reported that their Yahoo mail displayed a message asking them to disable their ad-blocker before they could continue to access their inbox. Ad-blocking has proved to be controversial and many companies have responded to it. Apple in September updated its mobile system iOS which allowed third-party ad-blockers to be installed. Google introduced a paid subscription version of YouTube, that lets viewers remove ads on the video streaming site for a monthly fee. Ad-blocking lovers say that by removing and disabling ads, smartphones' battery has improved and tracking and malware can be prevented.
