OS X & Google Chrome NTLM Authentication

ChromeGoogle Chrome for OS X generally doesn’t play well with proxy servers, especially those that require NTLM authentication. Those who have tried to use it in the past will be greeted with a constant barrage of proxy authentication prompts, each successful entry of credentials loads a tiny little bit more of the site..

However, there is a way to resolve this. Using a simple command in OS X terminal you can enable NTLM authentication in Chrome, and only have to enter your credentials once.

  1. Open Finder
  2. Open the Utilities folder
  3. Open a terminal window
  4. Copy and paste the following line in:
    Sudo /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --auth-schemes="ntlm"
  5. Enter your password and press enter
  6. Now quit and relaunch all Chrome windows.

That’s it. You should never be prompted again, at least not until you change your password.

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