Firebug is an extension for Firefox, but what happens when you need to test your pages in Internet Explorer, Opera, and Safari?

The solution is Firebug Lite, a JavaScript file you can insert into your pages to simulate some Firebug features in browsers that are not named "Firefox".

Firebug Lite creates the variable "firebug" and doesn't affect or interfere with HTML elements that aren't created by itself.

Installing Firebug Lite 1.2

Insert this line of code into any page that you want to contain Firebug lite:

    <script type='text/javascript' 
        src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'>

</script>

Firebug Lite as bookmarklet

Drag the following link to your bookmark toolbar and use Firebug Lite on any page:

FirebugLite

Configuring Firebug Lite

Height of the firebug lite form is resizeable in latest version;

  <script type="text/javascript">
  firebug.env.height = 500;
  </script>
            

Also, developers can use their own css file;

  <script type="text/javascript">
  firebug.env.css = "/myown/firebug.css"
  </script>
            

Using Firebug Lite Offline

Download the source

Import firebug-lite-compressed.js or firebug-lite.js into your site's directory. Find "firebug-lite.css" URL on the javascript file which you imported and replace this with offline address of firebug-lite.css file.

    <script language="javascript" type="text/javascript" 
        src="/path/to/firebug/firebug-lite.js"></script>