blocking inward access on certain port

Hi

How do i deny any internet connection from accessing an computer that have portforward defined on port 443(https) only?

tried with ip firewall filter:
chain forward
dst address 192.168.88.50
protocol tcp
dst port 443
in interface: ethernet 1
action drop

but see no sign of working nor with webproxy …

Excuse my limited knowledge about Mikrotik but amazing router to work with …

thanks for the help …