While official sources are gone, v9.0.246 can occasionally be found on third-party software archive sites.
: Specifically designed by Newgrounds to allow users to continue viewing Flash content on their site. Adobe Flash Player End of Life flash player v9.0.246 or higher download
: A massive project dedicated to preserving Flash games and animations, providing its own secure environment to run them. While official sources are gone, v9
Knowing the source can help determine if there is a safer way to view that content. HOW TO PLAY FLASH FILES -after 2020 While official sources are gone
Historical versions are preserved on the Flash Player Archive at the Internet Archive.