gistfile1.js

function evaluate(context, expr, origExpr, onSuccess, onError)
{
    var result;
    var commandLine = createFirebugCommandLine(context, win);
    // gets the debuggee object: 
    var dglobal = DebuggerLib.getDebuggeeGlobal(context.window, context);
    var resObj;

    // that works:
    commandLine.someFunction = dglobal.makeDebuggeeValue(function()
    {
        Firebug.Console.log("ok");
    });

    // simulates the console object creation (this works too!)
    var _console = dglobal.makeDebuggeeValue({ 
        info: function(){ alert('info'); },
        log: function() { alert('log'); },
        __exposedProps__: {info: 'r', log: 'r'}
    });

    // horrible wacky hack
    commandLine.console = dglobal.evalInGlobalWithBindings(
        "({info: function () { _console.info(); })",
        {_console: _console});

    resObj = dglobal.evalInGlobalWithBindings(expr, commandLine);

    // ...
}