Utiliser Firebug sans planter IE7&8
Firebug fournit justement un bout de code pour éviter de planter IE :
if (!window.console || !console.log || !console.debug) { var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"]; if (!window.console) window.console = {}; for (var i = 0; i < names.length; ++i) { if (!window.console[names[i]]) window.console[names[i]] = function() {}; } }