Is there any way to block authentication dialogs?

I tried the AdBlockPlus addon. This does not seem to prevent Authorization required. I'm using selenium for browser automatisation. When there comes a authentication popup the whole programm waits until the popup is closed. So I want that firefox handles authentication popus like if I always click on cancel.

  • What should happen once you have prevented the user from authenticating? – roaima Feb 24 '15 at 22:11
  • Please give us more details. – komaflash Feb 24 '15 at 22:13
  • It shall happen like if I click on cancel in the authenticating dialog. – John Smithv1 Feb 24 '15 at 22:14

I found my own solution for the problem. I’m using a modified version of the Firefox add-on AutoAuth. Normally this clicks the OK button when you visited a HTTP Authentication dialog before and saved username and password. I modified the plugin so that it always cancels the dialog. It’s working very well on Firefox 35.

My Java Code:

public class Main {
public static void main(String[] args) {
// create profile

FirefoxProfile profile = new FirefoxProfile();
//add a extension to firefox

File extension = new File("autoauth-2.1-fx+fn.xpi");

try {


} catch (IOException e) {

// TODO Auto-generated catch block


WebDriver driver = new FirefoxDriver(profile);


try {


} catch (InterruptedException ex) {



You have to modify the firefox addon https://addons.mozilla.org/en-us/firefox/addon/autoauth/. In there is the file chrome/content/overlay.js Replace the overlay.js with my version on http://pastebin.com/XRVxJdey

I hope this helps somebody

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