We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Iskanje po podpori

Izogibajte se prevarantski tehnični podpori. Nikoli vam ne bomo naročili, da pokličete telefonsko številko ali nam pošljete osebne podatke. Sumljivo dejavnost prijavite z gumbom »Prijavi zlorabo«.

Več o tem

Ta tema je arhivirana. Postavite prosim novo vprašanje, če potrebujete pomoč.

Firefox Ports Outbound: 50000 - 65535

  • 1 odgovor
  • 1 ima to težavo
  • 12 ogledov
  • Zadnji odgovor od cor-el

underpasscaviar
underpasscaviar
more options

Why does Firefox use dynamic ports in the 50K+ range when I use it to browse the web?

I have included screen shots with netstat -AB as well as currports.

Furthermore, if I set a rule in Windows Firewall blocking outbound traffic on ports 50000 - 65535, it breaks DNS with Firefox, even though 53 UDP is open.

I'm not overly concerned with any connection that is localhost / 127.0.0.1.

I've tried prohibiting these ports by modifying user.js - No impact, only works if I implicitly call out the port (example.com:55000)

What do? Why is FF using these ports?

Why does Firefox use dynamic ports in the 50K+ range when I use it to browse the web? I have included screen shots with netstat -AB as well as currports. Furthermore, if I set a rule in Windows Firewall blocking outbound traffic on ports 50000 - 65535, it breaks DNS with Firefox, even though 53 UDP is open. I'm not overly concerned with any connection that is localhost / 127.0.0.1. I've tried prohibiting these ports by modifying user.js - No impact, only works if I implicitly call out the port (example.com:55000) What do? Why is FF using these ports?
Priloženi posnetki zaslona

Vsi odgovori (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See Loopback connection =>