I'm not able to answer a question on Stack Overflow because the Human Verification page is showing up but without any CAPTCHA. I found many questions relating this but without a solution that worked for me. I guess this has something to do with my No-Script settings (Firefox plug-in). I selected "Temporarily allow all this page" several times but without success. I don't know of any proxy related restrictions on my internet connection but anyhow I there were some, I couldn't change them. Does this mean I can't pass the "Human verification"?

Human Verification - Are you a human being?

Chrome console with XHR time out

  • Can you post screenshot of what you see? Can you temporarily disable the plugin or try from different browser? Commented Aug 27, 2012 at 13:59
  • The same in here, usually it works (the big checkbox is loaded), but now I've refreshed and re-tried few times and no luck. Could be just my connection or something.
    – kenorb
    Commented Sep 30, 2015 at 16:24
  • I just had the same problem without No-Script plugin, using Safari with only AdBlock but it's disabled on SE and should block Google's ReCaptcha either way.
    – zakinster
    Commented Jan 22, 2018 at 16:08

3 Answers 3


I don't know exactly how NoScript works, but there might be some setting for blocking/allowing third-party scripts. The reCAPTCHA script gets loaded from http://www.google.com/recaptcha/....

Also, if you disable JavaScript altogether (in Firefox, not NoScript), the <noscript> version of the Captcha page should get displayed, which doesn't require JavaScript at all.

  • In the beginning, I tried it with Java Script completely disabled. Then, I also allowed all from google.com.
    – ulmo
    Commented Aug 27, 2012 at 13:28
  • Did you disable JavaScript in NoScript or in Firefox itself? I think it makes a difference. Also, try visiting google.com/recaptcha/api/…. If you can't see the image there either, your problem isn't related to JavaScript.
    – Dennis
    Commented Aug 27, 2012 at 13:32
  • JavaScript is enabled in Firefox settings. The CAPTCHA on google.com/recaptcha/api/… shows up.
    – ulmo
    Commented Aug 27, 2012 at 13:35
  • Then try disabling it in Firefox. That should display the <noscript> version.
    – Dennis
    Commented Aug 27, 2012 at 13:36
  • Disabling NoScript and disabling JavaScript in Firefox settings worked. A related but different problem is that without JavaScript, I can't comment. ;) Thank you!
    – ulmo
    Commented Aug 27, 2012 at 13:43
  • Well, in any case, this is a workaround. With NoScript disabled and JavaScript enabled, it should work.
    – Dennis
    Commented Aug 27, 2012 at 13:45
  • 1
    Yes, and it also works with disabled JavaScript. But I consider the fact that my browser behaves different with JavaScript disabled via Firefox settings compared to JavaScript disabled via NoScript as a bug (or at least unexpected behavior) of NoScript and not Stack Overflow.
    – ulmo
    Commented Aug 27, 2012 at 13:54
  • But in China we don't have Google. So how can I solve this problem
    – ZhaoGang
    Commented Nov 2, 2018 at 11:49

I just ran into this problem with Firefox 89.0. All I had to do was click the "X" on the upper right of the "Human verification" popup, and then the "I'm not a robot" checkbox suddenly appeared.

But when I clicked on the "I'm not a robot" checkbox, I got an "An error occurred submitting the captcha" message. I had to close the popup, click "Post your question" again, click on the "X" on the upper right of the "Human verification" popup again, and click on the "I'm not a robot" checkbox again, and then it worked.

enter image description here

  • 1
    They check how much you really want to post that question. Commented Jun 28, 2021 at 14:41

I had this same issue in Firefox. It was casued by having tracking protection turned on. I was able to fix it by going to "Preferences" and then to "Privacy and Security" And temporarily disabling "Tracking Protection"

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