2020 Adobe Flash Purge

[SubaruPoptart]

So I just recently learned about this, Adobe Flash is going to be completely replaced (FROM WHAT I'VE SEEN AND HEARD) in every browser, I'm assuming FFR runs in Adobe Flash Player. What would happen to the game then? This would happen through new updates and stuff like that over a few years' period but still.
I have like, WICKED BAD paranoia sometimes so that's the only reason I'm making this thread and I don't know much about this, looking stuff up won't really help me all too well either. I'm just paranoid and need some answers is all.

I know there's the standalone engines like R^3 and Velocity that run in their own window but is that still Adobe Flash Player as well?