Nrthugu

While creating chrome driver, use option to disable it.
Its working without any extensions.

Use following code snippet

ChromeOptions options = new ChromeOptions();

options.addArguments("chrome.switches","--disable-extensions");

System.setProperty("webdriver.chrome.driver",(System.getProperty("user.dir") + "//src//test//resources//chromedriver_new.exe"));

driver = new ChromeDriver(options);

The official way to disable the popup seems to be like this:

1. 
   

   Pack your extension (chrome://extensions/, tick at 'Developer mode', hit 'Pack extension...') and install it via drag-and-dropping the .crx file into the chrome://extensions page.

   
   
   

   (You'll get an "Unsupported extensions disabled" popup, if you try restarting Chrome at this stage)

   
   

Then for Win7/8:

2. Download Chrome group policy templates from:
   http://dl.google.com/dl/edgedl/chrome/policy/policy_templates.zip


3. Copy [zip]windowsadmxchrome.admx to
   c:windowspolicydefinitions


4. Copy
   [zip]windowsadmx[yourlanguage]chrome.adml to
   c:windowspolicydefinitions[yourlanguage]chrome.adml (not
   c:windows[yourlanguage])


5. In Chrome, go to the Extensions page (chrome://extensions)


6. Check the Developer Mode checkbox at the top


7. Scroll down the list of disabled extensions and note the ID(s) of the
   extensions you want to enable. LogMeIn, for example, is ID: nmgnihglilniboicepgjclfiageofdfj


8. Click Start > Run, and type gpedit.msc <ENTER>


9. Expand User Configuration > Administrative Templates > Google Chrome > Extensions


10. Double-click to open Configure extension installation whitelist policy


11. Select Enabled, then click Show...


12. In the list, enter the ID(s) of the extensions you noted in Step 7


13. Click OK and restart Chrome

That's it!

As of July 2018, this approach no longer works: it seems Google has stopped honoring the "whitelist"

EDIT: As of 10/16/2018, this approach WORKS.(Chrome Version 69.0.3497.100 (Official Build) (64-bit))
1.Temporarily enable developer mode in chrome://extensions/
2.Uninstall the extension you installed (To be precise the extension that causes the popup) using the "Load unpacked".
3.Click on pack extension and enter the root directory of the files(put the extension files in a single folder/one folder per error causing extension) don't enter the private key file if you don't have it.
4.Click pack extension a .crx and .pem file would be created near the root directory of the extension. Install the extension using the crx file and keep the pem file safe(if u delete it or something goes wrong without it you can always repack the extension).
5.Then copy the crx installed extension ID to the whitelist and restart chrome.
The popup should be gone.

As of May 2015 Chrome beta/dev/canary on Windows (see lines 75-78) always display this warning.

• I've just patched chrome.dll (dev channel, 32-bit) using hiew32 demo version: run it, switch to hex view (Enter key), search for ExtensionDeveloperModeWarning (F7) then press F6 to find the referring code, go to nearby INC EAX line, which is followed by RETN, press F3 to edit, type 90 instead of 40, which will be rendered as NOP (no-op), save (F9).



• 
  

  Simplified method found by @Gsx, which also works for 64-bit Chrome dev:

  
  
  
  
  
  1. run hiew32 demo (in admin mode) and open Chrome.dll
  
  
  2. switch to hex view (Enter key)
  
  
  3. search for ExtensionDeveloperModeWarning (F7)
  
  
  4. press F3 to edit and replace the first letter "E" with any other character
  
  
  5. save (F9).
  
  
  
  



• patch.BAT script

Of course this will last only until the next update so whoever needs it frequently might write an auto-patcher or a launcher that patches the dll in memory.

Can't be disabled. Quoting: "Sorry, we know it is annoying, but you the malware writers..."

Your only options are: adapt your automated tests to this new behavior, or upload the offending script to Chrome Web Store (which can be done in an "unlisted" fashion).

I was suffering from the same problem, and I tried the following:

1. Pack the unpacked extension


2. Turn off Developer Mode


3. Drag and drop the .crx file from the packed extension


4. Close Chrome, and then open it again.

A few things to note:

• The .pem file should be kept with the .crx


• Don't put the .crx and the .pem in the folder of the unpacked extension.

When I reopened Chrome, I got a popup that told me about the new packed extension, so I rebooted Chrome to see if it would do it again, and it did not.

I hope this solution worked!

The disable extensions setting did not work for me. Instead, I used the Robot class to click the Cancel button.

import java.awt.Robot;

import java.awt.event.InputEvent;



public class kiosk {

  public static void main(String args) {

    // As long as you don't move the Chrome window, the Cancel button should appear here.

    int x = 410;

    int y = 187;



    try {

      Thread.sleep(7000);// can also use robot.setAutoDelay(500);

      Robot robot = new Robot();

      robot.mouseMove(x, y);

      robot.mousePress(InputEvent.BUTTON1_MASK);

      robot.mouseRelease(InputEvent.BUTTON1_MASK);

      Thread.sleep(3000);// can also use robot.setAutoDelay(500);

    } catch (AWTException e) {

      System.err.println("Error clicking Cancel.");

      e.printStackTrace();

    } catch (InterruptedException e) {

      e.printStackTrace();

    }

  }

}

(In reply to Antony Hatchkins)

This is the current, literally official way to set Chrome policies:
https://support.google.com/chrome/a/answer/187202?hl=en

The Windows and Linux templates, as well as common policy
documentation for all operating systems, can be found here:
https://dl.google.com/dl/edgedl/chrome/policy/policy_templates.zip (Zip file
of Google Chrome templates and documentation)

Instructions for Windows (with my additions):

Open the ADM or ADMX template you downloaded:

• Extract "chrome.adm" in the language of your choice from the "policy_templates.zip" downloaded earlier (e.g. "policy_templates.zipwindowsadmen-USchrome.adm").


• Navigate to Start > Run: gpedit.msc.


• Navigate to Local Computer Policy > Computer / User Configuration > Administrative Templates.


• Right-click Administrative Templates, and select Add/Remove Templates.


• Add the "chrome.adm" template via the dialog.


• Once complete, Classic Administrative Templates (ADM) / Google / Google Chrome folder will appear under Administrative Templates.


• No matter whether you add the template under Computer Configuration or User Configuration, the settings will appear in both places, so you can configure Chrome at a machine or a user level.

Once you're done with this, continue from step 5 of Antony Hatchkins' answer. After you have added the extension ID(s), you can check that the policy is working in Chrome by opening chrome://policy (search for ExtensionInstallWhitelist).

For anyone using WebdriverIO, you can disable extensions by creating your client like this:

var driver = require('webdriverio');

var client = driver.remote({

    desiredCapabilities: {

        browserName: 'chrome',

        chromeOptions: {

            args: [

                'disable-extensions'

            ]

        }

    }

});

I'm not sure if this is still a problem for people or not. However, I read through this post and several others and finally played around with this and was able to make it work in C# using this code. I derived it all from this post and possible some posts linked to this post.

I hope this helps, it certainly solved my problems in C# console application.

Using version 52.0.2743.116 m of Chrome
Selenium 2.9 Server Driver

        var chromeService = ChromeDriverService.CreateDefaultService(@"C:SeleniumInstalledServerDrivers");

        var options = new ChromeOptions();



        options.AddArgument("--disable-extensions");                                      

        IWebDriver driver = new ChromeDriver(chromeService, options);



        driver.Url = "http://www.google.com/";

Ruby based watir-webdriver use something like this:

browser=Watir::Browser.new( :chrome, :switches => %w[ --disable-extensions ] )

For AngularJS and Protractor: (not explained anywhere else here)

Edit conf.js, add a capabilities section:

exports.config = {

    ...

    capabilities: {

        'browserName': 'chrome',

        'chromeOptions': {

            // Prevent warning about dev tools, which breaks some tests, in Windows at least.

            'args': ['--disable-extensions']

        }

    },

(based on this answer: https://stackoverflow.com/a/33113360/694469 about something a bit related but different)

1) Wait for the popup balloon to appear.

2) Open a new tab.

3) Close the a new tab. The popup will be gone from the original tab.

A small Chrome extension can automate these steps:

manifest.json

{

  "name": "Open and close tab",

  "description": "After Chrome starts, open and close a new tab.",

  "version": "1.0",

  "manifest_version": 2,

  "permissions": ["tabs"],

  "background": {

    "scripts": ["background.js"], 

    "persistent": false

  }

}

background.js

// This runs when Chrome starts up

chrome.runtime.onStartup.addListener(function() {



  // Execute the inner function after a few seconds

  setTimeout(function() {



    // Open new tab

    chrome.tabs.create({url: "about:blank"});



    // Get tab ID of newly opened tab, then close the tab

    chrome.tabs.query({'currentWindow': true}, function(tabs) {

      var newTabId = tabs[1].id;

      chrome.tabs.remove(newTabId);

    });



  }, 5000);



});

With this extension installed, launch Chrome and immediately switch apps before the popup appears... a few seconds later, the popup will be gone and you won't see it when you switch back to Chrome.

Unfortunately I cant automate setting it to developer mode because of restrictions in width using the browser in iphone mode. I have found a dangerous workaround for now, install the dev channel version of chrome. It does not have the warning message, but im sure it will cause me more problems in the long run when problems are introduced. Still will hopefully give me a few days to find a workaround.

Using selenium with Python, you start the driver with extensions disabled like this:

from selenium import webdriver

options = webdriver.chrome.options.Options()

options.add_argument("--disable-extensions")

driver = webdriver.Chrome(chrome_options=options)

The popup 'Disable developer mode extensions' will not pop up.