Firefox does not come with Firebug installed by default, you need to install it manually. To do that navigate to Firebug and Web Development on the Firefox Add-Ons site: https://addons.mozilla.org/, and click on the +Add to Firefox button.
Firefox does not come with Firebug installed by default, you need to install it manually. To do that navigate to Firebug and Web Development on the Firefox Add-Ons site: https://addons.mozilla.org/, and click on the +Add to Firefox button.