In a very simple environment, firebug gives you an awesome number of tools for developing your website.

I really appreciate the fact that comes with an huge number of extension to make it very suitable to your needs. Review collected by and hosted on G2.com.

It doesn't allow mobile emulation nor gives you a chance to simulate slow connection.

Sometimes its UX may appear a bit confusing, expecially in CSS and Javascript where at first glance is not very clear how to navigate between files. Review collected by and hosted on G2.com.

Firebug integration with Firefox is awesome. Despite Mozilla Firefox comes with its own Developers Tool, Firebug is a MUST HAVE for every web developer out there.

With CSS: You can modify CSS definitions on the fly, How will be seen this H1 in red color? Done, just change it in FireBug, review and write the definitive code in your CSS file, the same if you want to add some margin, padding o change font-size.

With JS: FireBug simplifies the benefits of the Javascript console, you can check "console.log" outputs easily but, FireBug really shines with AJAX, and POST responses. This responses are a pain in the #$% if you are using Chrome and its Developers Tool but, in FireBug, you can revise all the responses, even FireBug can format XML and JSON responses for easy reading. FireBug is clearly superior at this task.

With HTML: You can remove elements, add elements and modify elements in DOM tree or HTML Code on the fly. Very handle.

You are curious about a web site, its code or its CSS? Just FireBugize it.

I can't make no one web project without using FireBug. Review collected by and hosted on G2.com.

Is not easy copy text from CSS box at right inside FireBug window. That's the only thing that I dislike of FireBug. Review collected by and hosted on G2.com.

Console for easy debugging of javascript, easy to set of breakpoints and decode by inspecting values Review collected by and hosted on G2.com.

Need ability to know font/image details in depth on inspecting. Copying text of CSS from window is difficult. Review collected by and hosted on G2.com.

It gives me all the information i'm looking for in a simple way. Review collected by and hosted on G2.com.

It consume a lot of memory and the debug of javascript should be more simple, but probably is my fault. Review collected by and hosted on G2.com.

I love being able to edit code directly in the browser without having to make changes to the actual file first. Being able to preview changes and make decisions in a "preview" kind of way makes figuring out the best way to write code possible. The function to "add rule" has often helped to easily pull out the exact class or ID that needs to be added to a style sheet. Review collected by and hosted on G2.com.

I find the feature for inspecting code while an item is on :hover :focus or :active doesn't work very well, or if it does it is very hit or miss. This is especially frustrating when trying to troubleshoot drop menus in Drupal which can often have a great deal of <div>'s so pin-pointing the exact class/id can be difficult. Review collected by and hosted on G2.com.

The "click an element to inspect" option is amazing. I wish that same feature was implemented in google chrome's developer tools. I also really appreciate how elements on the page get highlighted when you rollover the corresponding code Review collected by and hosted on G2.com.

I really wish they had a section that displays the load time of various webpage elements like google chrome's developer tools. I Also wish they had a section that allowed you to extract video and image assets from a page much like developer tools allows you to do. If these two issue were rectified I would use firebug as my primary debugging platform rather that just use it for debugging specifically in firefox Review collected by and hosted on G2.com.

To me it was the best browser tool hands down. It seemed easier to use and better labor or that Google Chome developer toolbar. Review collected by and hosted on G2.com.

That it is no longer supported by Mozilla's latezt browser update. This was a huge blow to my productivity. Review collected by and hosted on G2.com.

Firebug was very simple to download and implement on Firefox. It automatically turns on whenever the browser is open. Review collected by and hosted on G2.com.

I prefer using Google Chrome so the fact that you can only use it on Firefox isn't ideal. Review collected by and hosted on G2.com.

Debug of JavaScript, HTTP request & response headers, manipulate cookies, instant update of html & css Review collected by and hosted on G2.com.

When open it up, it cover up about 30-40% of the screen Review collected by and hosted on G2.com.

I've used to use Firebug a lot back in 2010. It was really a novelty tool at that time. It isn't really special nowadays, though. The good news are — many of its features are now a part of the Firefox Developer Tools, all thanks to the Firebug team! Review collected by and hosted on G2.com.

Although Firebug was powerful, its design seemed a bit 2000ish — not really bad, but just a bit old-styled. Review collected by and hosted on G2.com.