you cant expect everything anyone ever created to be supported indefinitely. Those people move on to better less insecure projects.
Although, if you really want, someone else has been supporting flash for a long time and probably will for a long time more, check out this: https://lightspark.github.io/
Chrome's Flash is also Adobe's. It just comes preinstalled. So even with Google Chrome, you're using "the Adobe junk" ;-)
There are alternatives (Like Gnash or Lightspark), but they're probably not actually viable.
Simple: Convince Adobe to relicense the SWF flash format spec under a more permissive license and throw some resources at Gnash, Lightspark, and any other project that aims for compatibility.
Currently, the SWF spec is licensed to disallow development of players and permits only authoring tools. Gnash and Lightspark are reverse-engineered.
Sites need to stop using flash player or they won't be accessible by modern browsers anymore. Some have, some never will. To access them people will have to run an older, potentially insecure browser, or hope that one of the alternatives like gnash or lightspark become good enough to play those old flash files.
I'm not really sure. It seems like I encounter flash less and less in my day-to-day browsing.
You might want to take a look at Lightspark - I believe that's considered the better project nowadays.
first off, flash is a plague on the internet. It is extremely insecure.
Second, there are other implementations of flash other than the adobe one. They will unfortunately never truly die as they are open source.
Lightspark is an LGPLv3 licensed Flash player and browser plugin written in C++/C that runs on Linux and Windows. It aims to support all of Adobe's Flash formats. https://lightspark.github.io/
BlueMaxima's Flashpoint is a webgame preservation project. Internet history and culture is important, and content made on web platforms including, but not limited to Adobe Flash, make up a significant portion of that culture. This project is dedicated to preserving as many experiences from these platforms as possible, so that they aren't lost to time. Since early 2018, Flashpoint has saved more than 90,000 games and 10,000 animations running on 33 different platforms. https://bluemaxima.org/flashpoint/
FYI, the standalone Adobe Flash player which doesn't require a web browser, is still usable. Even if Adobe has declared that it's dead, discontinued, and abandoned.
Lightspark and Ruffle is an open source alternative for Adobe Flash player. But some Flash contents may not work because they're still in development.
Hijacking the top comment to mention a third way (the other two are flashpoint and shumway) of playing old flash games, Lightspark. Shumway is no longer developed and flashpoint (as far as I can tell) isn't open source. Lightspark looks to be both
There's also HaxeFL that claims to be compatible with Flash format, but I think it's that it's compatible with the source files, not compiled .swf?
Yeah, there's also gnash, but I think the other problem is there are two incompatible versions of Flash, gnash supports the older one, shumway supports the newer one.
Also there is lightspark! Oft ignored, but it's free/open source and should be compatible with any OS: