This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

why does it open so many ports?

  • 2 balasan
  • 1 ada masalah ini
  • 43 paparan
  • Balasan terakhir oleh cor-el

more options

i understand add-ons open connections.. but why does FF itself need 8 ports opened? if i was hack i would def target these. TCP 1100 and upwards.. then i just piggyback on the traffic. There is no need for this many port openings. and every time you close their connection.. boom.. they reopen on a diff port range. This is a major vulnerability.

i understand add-ons open connections.. but why does FF itself need 8 ports opened? if i was hack i would def target these. TCP 1100 and upwards.. then i just piggyback on the traffic. There is no need for this many port openings. and every time you close their connection.. boom.. they reopen on a diff port range. This is a major vulnerability.

Penyelesaian terpilih

Firefox needs to open ports to communicate with other Firefox processes.

You may see three or more Firefox processes running.

  • one process for the main Firefox thread (user interface)
  • one or more content processes set via dom.ipc.processCount
    Options/Preferences -> General -> Performance
    remove checkmark: [ ] "Use recommended performance settings"
  • one process for the compositor thread (Windows;graphics)

You can find the current multi-process state on the Troubleshooting Information (about:support) page.

  • "Help -> Troubleshooting Information" -> "Application Basics":
    Multiprocess Windows
    Web Content Processes
Baca jawapan ini dalam konteks 👍 0

All Replies (2)

more options

If you are aware of a way to exploit those open ports, please file a bug report: https://bugzilla.mozilla.org/

To reduce the number of background connections, see: How to stop Firefox from making automatic connections.

more options

Penyelesaian Terpilih

Firefox needs to open ports to communicate with other Firefox processes.

You may see three or more Firefox processes running.

  • one process for the main Firefox thread (user interface)
  • one or more content processes set via dom.ipc.processCount
    Options/Preferences -> General -> Performance
    remove checkmark: [ ] "Use recommended performance settings"
  • one process for the compositor thread (Windows;graphics)

You can find the current multi-process state on the Troubleshooting Information (about:support) page.

  • "Help -> Troubleshooting Information" -> "Application Basics":
    Multiprocess Windows
    Web Content Processes