In 2017, Adobe revealed that it would end support for Flash Player at the end of 2020. It’s now out with more details as to how the final stages of Flash’s life will pan out.
Adobe will remove all download links to Flash Player on and after December 31st 2020. All ‘flash-based content’ will be blocked from running so will cease to work, and Adobe will no longer issue security updates after this date.
Regular security fixes will be issued until then and any ‘new features and capabilities as determined by Adobe’, although this is looking increasingly unlikely. Adobe recommends users to migrate to HTML5 or WebGL and says that ‘by announcing our business decision in 2017’ this ‘would allow sufficient time for developers… to migrate existing Flash content’.
Most browsers, including Safari, have blocked Flash from running by default.