chromium browser (pepperflashplugin) opening listening ports on 0.0.0.0:5353

I am using chromium browser (chrome) with pepperflashplugin in Debian. I have noticed, chromium/pepperflashplugin opens a listening port on my public interface 0.0.0.0:5353 as seen with netstat:

netstat -lptun
Proto  Recv-Q  Send-Q  Local Address  Foreign Address  State  PID/Program name     
udp         0       0  0.0.0.0:5353   0.0.0.0:*               13971/libpepflashpl

I have been using Firefox (Iceweasel) before and I have never seen browser/flash-plugin to open ports. Indeed, I have never seen any client application opening listening ports on 0.0.0.0.

Why is chromium doing this?

Is this necessary ?

Can I disable this?

Can I start chromium with pepperflashplugin disabled ?