Problems in opening MySQL Query Browser
This question is already being answered https://stackoverflow.com/questions/5376427/cant-connect-to-local-mysql-server-through-socket-var-mysql-mysql-sock-38:


  If your file my.cnf (usually in the /etc/mysql/ folder) is correctly configured with

socket=/var/lib/mysql/mysql.sock

  
  you can check if mysql is running with the following command:

mysqladmin -u root -p status

  
  try changing your permission to mysql folder. If you are working locally, you can try:

sudo chmod -R 755 /var/lib/mysql/

  
  that solved it for me