Firebug : FireFox Add-ons

Firebug is Free and an Open Source

• Firebug integrates with Firefox to put a wealth of web development tools at your fingertips while you browse.
• It helps you to edit, debug, and monitor network activity, CSS, HTML, and JavaScript live in any web page.

Enjoy Firebug's Activities:

• Firebug gives you fine-grained control over which websites you want to enable it for.
• Inspect and Edit HTML.
• Tweak CSS to perfection.
• Monitor your computer's Network activity.
• Debug and Profile JavaScript.

Download Firebug here: Firebug 1.4.5


Troubleshooting Firebug : Oops! My Gmail is facing slower connections.

The Firebug Add-on in Mozilla FireFox browser may slow down your Network speed. You will realize this when you attempt to open your Gmail account.

Dont worry! It's takes only few steps to troubleshoot it.

As soon as Firebug is installed in your system a small bug icon will appear @ the bottom right corner of your Mozilla FireFox browser.

Now,

• Click on the bug icon. Choose "console" tab from the window that has opened after clicking the bug icon.
  
• Click on the small dropdown arrow in the "console" tab.
  
• From the pop-up menu choose "Show XMLHttpRequests" and make sure that this option is unchecked.
  
• If you still face the problem of slower connections, choose the "Disabled" option from the pop-up menu of "console" tab.

Now your Gmail will load quickly without this problem: "Problem loading page due to slower connections".