Javascript that detects Firebug?

Question

What\'s a surefire way of detecting whether a user has Firebug enabled?

Answer 1

Currently, the window.console.firebug has been removed by latest firebug version. because firebug is an extension based JavaScript debugger, Which defined some new function or object in window.console. So most times, you can only use this new defined functions to detection the running status of firebug.

such as

if(console.assert(1) === '_firebugIgnore') alert("firebug is running!"); 
if((console.log+'''').indexOf('return Function.apply.call(x.log, x, arguments);') !== -1)  alert("firebug is running!");

You may test these approach in each firebug.

Best wishes!