"Also work is just like you have to get them done"
It's unfortunate that your work is reacting the way they are and impacting the success of your employment.
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
For users attempting to view Flash content, contact the content creators and inquire about their plans to migrate their content to some other technology.
For enterprises dependent on Flash Player, please refer to the Enterprise end-of-life FAQ:
https://www.adobe.com/products/flashplayer/enterprise-end-of-life.html
Enterprise Enablement feature (only allow trusted content to load) may be an option until such time all browser’s remove support for Flash. Technical details can be found in the Flash Player Admin Guide, pages 28-35:
https://www.adobe.com/devnet/flashplayer/articles/flash_player_admin_guide.html
You can point your employer to this post if you'd like.
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