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

I want manage firefox settings ( about:config ) programmatically

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by Bithiah

more options

Hey guys,

I think that my question is clear from the title :D ... but i will explain it.

I'm trying to make a program to change Proxy IP . I made it to change Google Chrome and Internet Explorer Proxy but Firefox Proxy didn't change.

I tried to change Firefox Proxy from :

C:\Program Files\Mozilla Firefox\defaults\pref

but I can't change the proxy so please, help me to edit Firefox Proxy settings using C#

All Replies (4)

more options

Hi I am Aarol Please click on the Settings Icon then click manage more settings Go to General and scroll all the way down to network settings. Click settings and manage. Hope it helps.


more options

As far as I know, you cannot dynamically change the proxy IP during a Firefox session by editing a file. However, you could modify a file and have it take effect in the next Firefox session.

What file did you place in C:\Program Files\Mozilla Firefox\defaults\pref? Were you setting up an Autoconfig: Customizing Firefox Using AutoConfig

Why do you want to do this with C#? Wouldn't it be easier to use Group Policy?


more options

@jscher2000. Thanks for the response. Using C# because I am developing for an external client and access to group policy isn't easier to get.


more options

Hey there!

If your problem is solved, could you please kindly mark a solution so others can know this thread is solved? Thanks!

Kind regards,



Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.