httpd-conf-edits.txt

#BACKUP YOUR FILES FIRST

#EDITS FOR httpd.conf

#1. Uncomment these lines
LoadModule ssl_module modules/mod_ssl.so
Include /Applications/MAMP/conf/extra/httpd-ssl.conf

#2. Change ServerName value
ServerName localhost:443

#EDITS FOR httpd-ssl.conf

#3. Uncomment
Listen 443

#4. Edit VirtualHost opening tag
<VirtualHost *:443>

#5. Inside VirtualHost edit these lines
  DocumentRoot "/Applications/MAMP/htdocs"
  ServerName  localhost:443
  SSLEngine on

#6. Add/Uncomment/Edit the two certificate lines
SSLCertificateFile "/Users/YOURUSERNAME/ssl/server.crt"
SSLCertificateKeyFile "/Users/YOURUSERNAME/ssl/server.key"

v3.ext
server.csr.cnf
ssl-certificate-commands.txt
*httpd-conf-edits.txt

#7 comment the SSLMutex line (it does not work with MAMP 6).
#SSLMutex "file:/Applications/MAMP/Library/logs/ssl_mutex"

@jmerinoh I don;'t understand what commenting is, can you explain it fully please

Commenting is leaving comments in your code. Writing notes to yourself and other developers.