Show us what you're getting. It works for me. see screenshot What OS? What version of Firefox? Do you have the same issue with Firefox in Troubleshoot Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf

Thanks for trying to help. There is nothing I can show because zero happens when I enter a legitimate license number. The OS is Sonoma 14.5. Firefox is 131.0.2. I am sorry, but I am not a technical person and based on similar exercises in the past I just wasted time trying to do things that I don't understand and didn't help.

Since it works for you (thanks for trying it), I will use Safari.

Sue, I am trying your procedure here from the Southeast U.S., connected via Google Fiber. I have noticed that the Windows Web Server is responding slowly to many requests. I don't believe the problem is Firefox.

Thanks but sorry, I do not understand. Nothing times out, there is no error message when using Firefox. At the very same time, Safari displays the correct answer instantly.

What if you turn this off? see screenshot

Thanks. As I mentioned in my first post: "I turned out the enhanced tracking protection and Privacy is set to Standard". So I already did that.

It happened with other websites too in similar ways, while Safari has no issues.

It seems that websites that use Captcha verification fail when using them with Firefox. This might be one of the reasons why some websites do not work with Firefox.

Does anyone know if that's a reported , outstanding bug?

I should have explained that all logins for websites that require Captcha fail as the captcha is required to be passed prior to logging in, but the captcha never appears and so when I try to log in, nothing happens and I cannot login. I have tried the above same sites with Safari and have no such issue, the captcha shows and I can login.

I have also seen this reported by many. Any reason Firefox cannot fix it?

I can't reproduce this issue, but this info about captcha may be relevant. It looks like something is filtering your network traffic. It may be an addon, security software or a proxy. As a first step, go to your connection settings and switch to No proxy.