You do not need to install Flash Player.
Use the following steps to allow Flash content in Microsoft Edge:
Click Settings near the bottom of the menu that appears
Click View advanced settings under the Advanced Settings header

Download Macromedia Flash 8 free. Macromedia's professional web design. Toggle Use Adobe Flash Player to On. Allow Flash content for a website In Microsoft Edge navigate to the website that is missing Flash content. On the top right-hand side of the address bar you may notice icon. Click icon which will display a flyout Adobe Flash content was blocked. Adobe Flash Player is both a sophisticated and striking client runtime, allowing users to receive high-quality content on their computers. It provides a rich user experience, such as the easy creation of cubic Bezier curves with the cubicCurveTo.
In Microsoft Edge navigate to the website that is missing Flash content
On the top right-hand side of the address bar you may notice icon
Click icon which will display a flyout Adobe Flash content was blocked
Click Allow onceto allow Flash content to run on that page for just one time.
Macromedia Flash Professional 8 For Mac Free Download

Download Free Adobe Flash Player 8 For Mac
In Microsoft Edge navigate to the website that is missing Flash content
Click the icon in the missing Flash content to display a flyout indicating Adobe Flash content was blocked.
Click Allow once to allow Flash content to run on that page for just one time.