Can I open programs, using keyboard combinations keys?
 

Can I open programs, using keyboard combinations keys?
For exmaple, I want to open Mozilla, pressing Control + M
How can I make it?

I have debian with gnome.

Gnome keyboard shortcuts
 

There is a limited set of keyboard shortcuts available in System->Preferences (program name gnome-keybinding-properties). Launch web browser is one of the shortcut programs.

You will need to assign mozilla to be your 'preferred application' for web browsing if you haven't already done so using gnome-default-applications-properties.

I want to asign diferent keyboard combinatio to diferent programs.

For exmaple:

Terminal: Control + T
Mozilla: Control + M
Mplayer: Control + P

Some of them are present but some of them arenot.
So, how can I add those of them arenot present?

Try xbindkeys. Though, you'll not get a key combo working if it's already used for something else.