phpmyadmin Failed to set session cookie. Maybe you are using HTTP instead of HTTPS

Question

I install PHP, Apache, and MySQL done and worked. When I finish installing Phpmyadmin, then open it has an error.

Failed to set session cookie. Maybe you are         


        

Answer 1

I just ran into this problem using Firefox 61 on a site I had been using regularly, so I knew my config settings were correct. In fact, I could go in using Private Mode. So, in non-private mode, using the Firefox Developers Tools, I cleared ALL Session cookies and VOILA. Worked perfectly.