One of the lesser-known, but potentially groundbreaking, features arriving in the new version of Apple’s next mobile operating system, iOS 9, is support for “content blocking” extensions in Safari.
While that label doesn’t sound too dazzling in and of itself, users who install content blocking apps will see dramatic speed improvements when surfing the mobile web, thanks to the apps’ ability to block things like advertisements, trackers, scripts and other content that can slow down the loading of web pages.
Blockers also promise to protect user privacy as well as reduce data usage (and therefore preserve battery life), while allowing you to focus only on the website content that’s important to you.