If you are a developer of dynamic web content and want to debug a dynamically generated HTML page with errors you must use Firebug extension in Firefox Internet Browser. Firebug enables to edit the HTML, CSS, JavaScript and DOM of any page displayed in Firefox and see the changes instantly. Firebug infact divides browser window into parts as shown in picture below and enables Firebug in bottom part. To enable Firebug on your firefox you just have to add this extension by searching through Addons of firefox Tools menu. You may also get this Firebug extension from http://getfirebug.com. After installation you can see Firebug icon in the status bar of firefox (which is rounded with red circle in the picture below) which on click enables Firebug window. You may edit the source of HTML, CSS and JavaScript in that window and see the changes reflected immedeately in the browser window above. This is much suitable for forming CSS for new pages by experimenting with different values and see the changes instantly. You can debug JavaScript with a powerful JavaScript debugger and instantly find and fix the errors. Now why are you waiting for? Go get it.
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