Following Adobe's historic announcement to retire Flash Player at the end of 2020, Google asked Flash developers to begin the transition to HTML, providing them with clear guidelines, which are presented below.

For a long time, Google provided built-in support for Flash Player in its browser, but now it appears that Chrome will slowly start blocking Flash content, asking explicit permission from users to play it, until the program's support ends at the end of 2020.
In an article on the official Chrome blog, Google's developer team states that HTML is faster, more secure , and more efficient than Adobe's Flash (something everyone knows, of course) while working equally well on both desktop and mobile platforms. In addition, HTML offers significant energy savings thanks to its lower power requirements, which means it leads to longer battery life for devices.
According to Google, Flash usage has declined by 80% in the last three years, with only 17% of Chrome users now visiting websites that still contain Flash content. Google is strongly encouraging these websites to begin replacing any Flash content with HTML, urging their developers to adopt more modern web standards.
Chrome, like many other popular browsers, will gradually begin to increase restrictions on Flash content over the coming months and years, until its final withdrawal by Adobe.
