How to Install Firebug

Firebug is tool for web development. This tool helps developers or testers to identify web elements.
Firebug is available on Mozzila Firefox, with this tool you can look, edit, debug and monitor web elements such as HTML, CSS and Javascript.

Installing Firebug is easy.
steps
1. Open your Firefox browser
2. Click open menu on top right corner (on version 43.0.2)
3. Chose Add-Ons

 4. Go to Extensions tab
 5. Type Firebug on search box
 6. Add to Firefox

Now you have already installed firebug. once it installed, firebug icon will show on Firefox's toolbar
You also can access firebug with right click on any webpage element you desire->Inspect element with Firebug.

That's IT!