unable to log in to photoshop help

When I use F1 or Photoshop menu Help>Photoshop Online Help... . My default Web Browser start up on this link Photoshop Help | Photoshop Help. 

My default Web browser also start up when I use menu Help>Photoshop Support center... on this page Learn Photoshop, get help and support | Adobe Photoshop CC

My default Web browser also start up when I use menu Help>Browas Add-Ons... on this page https://creative.adobe.com/addons?pp=PHSP&ppv=15.1&locale=en

You also failed to note which version of Photoshop and your machine environment.

It may be that  there is a problem with you system configuration that executing a URL does not open a web browser.

You wrote it opens but the screen goes black. Can you see what application opes? It should be a web browser or a new tab in a currently running web browser...

You also wrote you enter your Adobe user name and password and get a clock.  You failed to state where you entered your Adobe Name and password.

How did you change you password?

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• Adobe product and version number
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• The full text of any error message(s)
• What you were doing when the problem occurred
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• Computer hardware, such as CPU; GPU; amount of RAM; etc.