Firebug – Best web development helper for Firefox

Firebug is a free and open-source, complete and powerful Web development auxiliary plug-in for Mozilla’s Firefox. The same as Chris Pederick’s Web Developer, it added plentiful website designing, developing and testing tools at our fingertips. Web developers can use it to debug, edit or even delete HTML, CSS, DOM, and JavaScript code of any website.

Firebug allows to check and edit HTML tag, view and modify various CSS containers (box model) in a web page; check web page’s response time (i.e.: download time) according to different file types; debug and execute JavaScript in real time; monitor network status; and so on. In fact, it has become the right-hand man of JavaScript, CSS, HTML and Ajax programming for a long time. Like an exquisite Swiss Army Knife, Firebug enables users to analyze all internal details of web pages from different perspectives, brings great convenience to Web developers.

// Key Features //

  • Always at your service
  • Inspect and edit HTML
  • Tweak CSS to perfection
  • Visualize CSS metrics
  • Monitor network activity
  • Debug and profile JavaScript
  • Quickly find errors
  • Explore the DOM
  • Execute JavaScript on the fly
  • Logging for JavaScript
  • ….

// Official Demo Video //

// Download URLs //

(Homepage

// Related Posts //
John’s Background Switcher – Montage style desktop wallpaper automatic changer
It isn't unusual to automatically change the desktop wallpaper using software (even it has built in this function since Windows 7). However, one characteristic of John's Background Switcher (JBS for ...
READ MORE
CrystalDiskInfo – Sought-after hard drive health monitor
The data stored in hard drive is almost always important (also vital for few guys), so it's necessary to regularly check their health status. CrystalDiskInfo is an open-source, free hard disk ...
READ MORE
[v5.2.3] Perfect Mask – Top-level Photoshop cut-out filters
ON1/onOne's Perfect Mask is an intelligent digital photo masking filter program. It can run as a standalone application, or be used as a filter plug-in of Adobe Photoshop, Photoshop Elements, Lightroom, Apple ...
READ MORE
IntelliJ IDEA – Most intelligent IDE for Java, Android developers
IntelliJ IDEA is an award-winning Java and Groovy programming languages integrated development environment, as one of products of JetBrains company from Czech Republic, whose most developers are from eastern Europe noted ...
READ MORE
[v7.4.2] File & Image Uploader – All free file/image hosts universal batch uploader
If you need to upload video, audio, image or document files to multiple free file hosts for backup or sharing, in addition to signing into these websites and manually upload ...
READ MORE
clrmamepro – Most popular video game ROM manager
If you often play emulator based video games on computer, then you must find a problem: many games (ROM) couldn't be recognized any more in the wake of version update ...
READ MORE
Pidgin – IM clients all-in-one
Pidgin (formerly named Gaim, and we can pronounce it "/ˈpɪdʒɪn/") is an open-source, cross-platform instant chat client application developed in GTK, supports all IM clients which using common instant communication ...
READ MORE
NO$Zoomer – Special full-featured magnifier addon for NO$GBA
Many people only know there is an NO$GBA, but maybe not know it also has a magnifier front plugin - NO$Zoomer. Although it just acts as an add-on tool, it can ...
READ MORE
Simple CSS – CSS source code visual editor & designer
Simple CSS is a very exquisite and user-friendly visual CSS editor and designer, compared with many traditional visual CSS editor, it appears to be more concise and humanized. Simple CSS is ...
READ MORE
[v6.19] GoldWave – Highly-rated professional digital audio editor
GoldWave is a classic (with more than 20 years of development history) and very professional lightweight (less than 10 MB) digital audio editor from Canada, with the most advanced and complete audio ...
READ MORE
John’s Background Switcher – Montage style desktop wallpaper
CrystalDiskInfo – Sought-after hard drive health monitor
[v5.2.3] Perfect Mask – Top-level Photoshop cut-out filters
IntelliJ IDEA – Most intelligent IDE for Java,
[v7.4.2] File & Image Uploader – All free
clrmamepro – Most popular video game ROM manager
Pidgin – IM clients all-in-one
NO$Zoomer – Special full-featured magnifier addon for NO$GBA
Simple CSS – CSS source code visual editor
[v6.19] GoldWave – Highly-rated professional digital audio editor

  • If any download link breaks down, remember to tell us to update for you (find the email address @ About page)
  • Due to daily work, we can't reply you in time, please understand. But we will reply every email, except the mistakes in sending or receiving made by email system.
  • Any resource downloaded from AppNee, we still suggest you use antivirus software to do a full scan (especially the more authoritative and comprehensive online scanning websites VirusTotal or VirSCAN), and then judge by yourselves to decide whether to use.
  • If you ran into any error message when using some softeware, you can post them to our support forum (en.AppNee.com), where we will do our best to find the most effective solution for you.