gistfile1

/**  
 * an api for adding soemthing to the developer toolbar
 */
var devtool = require('devtools/toolbar').Tool({
    label: 'My Dev Tool',
    contentURL: self.data.url('index.html'),
    contentScritpFile: self.data.url('tool.js')
    onOpen: function(worker) {
        worker.on('x', y); // etc.
    }
});

/**  
 * an api for creating a custom logging channel in the gobal console
 * firePHPConsole has the same methods as console eg log, warn, etc
 * see: https://developer.mozilla.org/en-US/docs/DOM/console
 */

function firePHPParser(raw) {
    // ...etc
    return parsed;
}

var firePHPConsole = require('devtools/console').Console({
    label: 'FirePHP',
    parser: firePHPParser,
    scope: 'tab' // or global
});

var firePHP = require('page-mod').PageMod({ /* etc */ 
    contentScriptFile: self.data.url('parser.js'),
    onAttach: function(worker) {
        worker.on('firePHP', function(message) {
            firePHPConsole.log('')
        });
    }
});