replacement for flash

There is no replacement plugin for Flash Player.  The replacement is for content providers to migrate their content to some other technology.

Adobe announced Flash Player's end-of-life in July 2017 giving content creators, programmers, developers, IT experts, etc over 3 years remove Flash Player dependencies from their products. All modern browsers provide the capabilities necessary to do this in JavaScript.  This is an investment and prioritization choice, not a technical limitation. 

For reference:

• https://theblog.adobe.com/adobe-flash-update/
• https://www.adobe.com/products/flashplayer/end-of-life.html

Major browser vendors are deprecating Flash Player support.  Details specific to each vendor:

• Apple Safari - removed Flash Player support in Safari 14, released Sept 16, 2020
• Google Chrome - removed Flash Player support in Chrome 88, released Jan 19, 2021
• Firefox - removed Flash Player support in Firefox 85, released on Jan 26, 2021.
  • Firefox ESR 78 will support Flash Player for the time being, assuming the Flash Player NPAPI plugin is already installed as it’s no longer available for download.
• Microsoft Edge - removed Flash Player support in Edge 88, released Jan 15, 2021
• Microsoft Internet Explorer and legacy Edge - Has information on options for continued support for enterprise customers