Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Firefox blocked my Arduinoethernet device on port 23. How to unblock

  • 1 reply
  • 1 has this problem
  • 4 views
  • Last reply by ideato

more options

I want to use my arduino ethernet device for controling my projects. It use my lan ip adres on port 23 not 80. 192.168.2.7 but firefox will not allow me to use this port for my security. how to unblock this behaviour?

I want to use my arduino ethernet device for controling my projects. It use my lan ip adres on port 23 not 80. 192.168.2.7 but firefox will not allow me to use this port for my security. how to unblock this behaviour?

All Replies (1)

more options

Hello Robertdehaas, you have to create in about:config, the next preference network.security.ports.banned.override

see : http://kb.mozillazine.org/Network.security.ports.banned.override.

http://www-archive.mozilla.org/projects/netlib/PortBanning.html

any luck ?

thank you