Zend framework 2 and firebug and composer

To install firebug core lib via composer onto zend framework 2,

vendor/composer.json

#add:
 "firephp/firephp-core": "dev-master"

#example:

"require": {
        "php": ">=5.3.3",
        "zendframework/zendframework": "2.*",
        "firephp/firephp-core": "dev-master"
    }

#run in console:
php composer.phar install

#for update on existing library
php composer.phar update