Firefox is a widely-used browser – not just by users but web developers. Simply put, Firefox and its addons can make developing for the web easier and simpler. And with the release of Firefox 4, it got even easier. This article features 20 essential Firefox addons for web developers.
Before diving into the Firefox addons, though, here’s a quick glimpse into some of the noteworthy new Firefox features that benefit web developers:
- Improved HTML5: Gecko now uses the HTML5 parser, which fixes bugs, improves interoperability, and improves performance.
- Better CSS support: Firefox 4 features support for new CSS transitions, computed values, selector grouping, background image subrectangle, and touch properties.
- New CSS stuff: Firefox 4 adds new CSS properties, pseudo-classes, pseudo-selectors, and functions.
- More graphics and video support: for WebGL, WebM video, SMIL animation for SVG, and more.
- Improved security: new security features added like Content Security Policy (CSP), HTTP Strict Transport Security, and more.
- Built-in developer tool: Firefox 4 features the Web Console tool which is a debugging aid for web and extension developers.
However, what makes Firefox great is the development community around it, and appropriately there are tons of addons that make your web development simpler and easier.
Please note that four of the extensions below are still marked as ‘experimental’, but have been tested and do work perfectly well with Firefox 4, they are: HTML5toggle, HTML5 Validator, Mobile Toolkit and Mobilify.
FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers. Along with transferring your files quickly and efficiently, FireFTP also includes more advanced features such as: directory comparison, syncing directories while navigating, SFTP, SSL encryption, search/filtering, integrity checks, remote editing, drag & drop, file hashing, and more.
HTML5toggle provides a button which makes it easy to turn on or off the HTML5 support in Firefox 4. Given that HTML5 support is still evolving, some websites do not work as expected when HTML5 support in Firefox 4 is enabled.
HTML5 Validator (Experimental)
IE Tab 2
IE Tab 2 lets you use IE to display web pages in a tab within FireFox. Adopted from the original IE Tab, this version has new features including IE 7, 8 or 9 compatibility modes. You can also import settings from your old IE Tab.
View Source Chart
Mobile Toolkit (Experimental)
MobileToolkit helps you to validate the code of any page, check it on several mobile emulators and find documentation to improve your mobile compatibility. It offers not only one click code validation but also mobile render emulation for various mobile devices and browsers.
CodeBurner for Firebug
Adobe BrowserLab for Firebug
Adobe BrowserLab integrates with Firebug and generates screenshots of your pages (public or behind a firewall) in multiple browsers. Launch Adobe BrowserLab directly from Firebug and preview temporary changes you’ve made using Firebug.
FirePath for Firebug
Firepicker for Firebug
Firepicker integrates with Firebug and adds a small color picker dialog when editing a CSS rule in Firebug. Firepicker scans for values that can be parsed as CSS colors (#abc, rgb(1,2,3), blue, red etc.) and displays them in a drop-down list right below the firebug’s CSS editor box. Clicking on the color value in the drop-down brings up a color picker dialog.
FoxyProxy is an advanced proxy management tool that completely replaces Firefox’s limited proxying capabilities. It automatically switches an internet connection across one or more proxy servers based on URL patterns.
What Are Your Essential Web Developers Firefox 4 Addons?
Over to you: what are your favorite Firefox 4 addons for web developers? Feel free to share your useful additions in the comments section below.