CODEWITHSUNDEEP
javascriptfirefox
edi66
edi66

Reputation: 83

How can I change proxy from javascript(using an addon)?

How can I change Firefox proxy settings from javascript(using an addon)?

Upvotes: 1

Views: 3282

Answers (3)

Lix
Lix

Reputation: 162

Nowadays(2013) it's very easy, using the latest SDK(1.14) you can do it with a few lines of code:

const {Cu} = require("chrome");
Cu.import("resource://gre/modules/Services.jsm");
Services.prefs.setCharPref("network.proxy.http", proxy_ip);
Services.prefs.setIntPref("network.proxy.http_port", proxy_port);
Services.prefs.setIntPref("network.proxy.type", 1);

You can also set ftp and ssl proxy IP and port if you want. The proxy_ip and proxy_port variables contain what their name describes.

That code snippet was copied from a new proxy add-on for Firefox, but any extension that uses the latest SDK is going to do the same.

Upvotes: 2

Matt
Matt

Reputation: 11

simple

netscape.security.PrivilegeManager
  .enablePrivilege("UniversalBrowserAccess UniversalXPConnect");
  var prefs = Components.classes["@mozilla.org/preferences-service;1"]
              .getService(Components.interfaces.nsIPrefBranch);

     prefs.setIntPref("network.proxy.type", 1);


 prefs.setCharPref("network.proxy.http", "5.5.5.5");
 prefs.setIntPref("network.proxy.http_port", "80");

prefs.setCharPref("javascript.enabled", "true");

Upvotes: 1

Rushyo
Rushyo

Reputation: 7614

As stated by others: FoxyProxy performs this role from a user perspective. It's certainly possible to edit the configurations using the nsIPrefService if you want to do it from your own extension for some other purpose - but it's very tricky not to damage the user experience this way (eg. overriding another extension unintentionally) as you are editing the browser's global state.

Upvotes: 0

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