Is there a way to stop Firebug from working on a particular site?

Question

Is there some way to make Firebug not work at all on a website?

Answer 1

If the performance of your website suffers when Firebug is enabled, you may want to display a warning, asking users to switch it off. You can easily detect if Firebug is enabled through JavaScript.

Answer 2

WARNING: EXTREME EVIL. NEVER EVER USE THIS CODE. Also, it won't deter someone who is resourceful.

setTimeout(checkForFirebug, 100);
function checkForFirebug()
{
    if (window.console && window.console.firebug) {
      while(true);    //Firebug is enabled
    }
    setTimeout(checkForFirebug, 100);
}

EDIT: I figured I would provide an answer to the real question behind the question. The fact is, Javascript is an interpreted language and that interpreter is in the browser. This makes it literally impossible to provide Javascript that is both secure and runnable. The same goes for HTML and CSS. The best you can do is minify the Javascript to make it a little less easy to reuse. If the company in question really wants "secure" Javascript, you just have to tell them it's not truly possible.