Launch Opera. Go to Settings>advanced and find Flash. Here is how to do that:
To play flash games, videos and animations after 2021, you will need an older browser version and flash player intsallation, that you may find on this site. If your primary browser is Chrome, you may download and install a second browser like Firefox or Opera from this page and use them just for playing flash games and flash content. The flash legacy archive include the latest stable versions of the popular browsers and the flash players for them that may run flash content.
Mozilla Firefox. Here are all files you need to make the Firefox a second browser and play flash games online with it:
Opera. Here are all stand alone files you need to make the Opera a second browser and play flash games online with it:
Flash Legacy Archive:
Here are ways to allow blocked flash content for different web browsers:
Allow Flash on pages with blocked content.
Turn on from global settings:
Enable on Mac OS and Windows
Click to enable
1. If Firefox blocks a plugin, rather than seeing content, you'll see a message prompting you to click to run the plugin, such as Adobe Flash.
2. On some sites, you'll see just a blank rectangle, and the plugin notification icon will appear toward the left end of the address bar.
For Mac OS X 10.11, macOS 10.12, and later