Once a ubiquitous technology used to power all the media content, the software has been replaced by better and more secure technologies. Today, the company got specific: Flash will be supported through to the end of 2020, after which the Flash player will cease to be developed and distributed. Google says that Flash will be completely removed by the end of 2020, adding that "it's taken a lot of close work with Adobe, other browsers, and major publishers to make sure the web is ready to be Flash-free".
Adobe announced it would end support for the multimedia plug-in Flash by the end of 2020.
Similarly, browser vendors have also started deprecating Flash support over the last few years. That will continue until the end of 2020.
2019 Early - Firefox will display a visible warning to users if a site uses Flash. Flash had its day, but its time has come. (Remember that late Apple CEO Steve Jobs wrote a long note about why iOS devices didn't support Flash back in 2010.) Many websites use these standards for their interactive elements instead of relying on Adobe's proprietary tool. Hopefully, the "true" demise of Flash will happen quickly after that point since there will be no security updates to protect users from the scores of exploits that plague the software.
In Chrome, Flash will go away altogether by 2020. When re-enabled, Microsoft Edge will continue to require approval for Flash on a site-by-site basis.