Firefox installation problem

I’m trying to install firefox but every it shows “snap “firefox” assumes unsupported features” “Try to update snapd and refresh the core snap” Snapd is updated and also core snap are refreshed

what is the full output of

snap version

snap 2.37.4-1+b1
snapd 2.37.4-1+b1
series 16
deepin 20.3
kernel 5.10.60-amd64-desktop