Install GRUB Customizer 3.0 in Ubuntu 12.04/11.10/11.04/10.10

Grub Customizer, lets you Configure your boot menu entry Graphically. By using GRUB customizer you can

Select the default boot entry
Change the menu visibility
Timeout
Set kernel parameters
Disable recovery entries and
Change screen resolution

To know more about GRUB Customizer you can visit THIS PAGE

To install GRUB Customize in Ubuntu 12.04/11.10/11.04/10.10, open terminal (Alt + Ctrl + t