Activate JavaScript console for Firefox

Mex — Tue, 10 Dec 2013 14:16:00 +0000

For whatever reason, the JavaScript console is not working for Magento by default. So if you try to output messages using console.log, nothing will happen. To change that, open js\varien\js.js and uncomment the following code:

if (!("console" in window) || !("firebug" in console))
{
    var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
    "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];

    window.console = {};
    for (var i = 0; i < names.length; ++i)
        window.console[names[i]] = function() {}
}

The Magento Expert

Activate JavaScript console for Firefox