Though it's been a long time coming and the writing's been on the wall for a while, Google Chrome is finally de-emphasizing Flash in favor of HTML5. Come September, Google Chrome 53 will begin blocking Flash, such as the kind that loads "behind the scenes," as Google says, which can slow down casual web browsing. HTML5 is a lot less resource-heavy and when pages utilize it, it improves battery life, page loading and responsiveness across the web.
Source: Google
