15+ Firefox Add-ons for Web Developers & Designers

Firefox Add-ons for Web Developers & Designers – Firefox is the best web browser in the world and it’s used by most Internet users. My daily internet activity is blogging, updating my post and editing my blog theme everyday.  All my Activities can be made easier using Firefox add-ons that especially for web developer or designers. As newbie, I learn editing my theme everyday using firebug. And now, Editing the CSS file isn’t really painful .
Here’s some firefox add-ons that are commonly used by the web developers and designers. and don’t forget to check out other related Firefox add-ons post.

• Youtube Firefox Add-ons
• Firefox Security and Privacy Addons

Thanks for reading my blog .

1. Firebug

Firebug - Firefox Add-ons for Web Developers & Designers

Firebug is the most popular web development Firefox add-ons to edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
There’s available additional firebug add-ons.

• YSlow – analyzes web pages and why they’re slow based on Yahoo!’s rules for high performance web sites.
• Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser.
• FirePHP enables you to log to your Firebug Console using a simple PHP method call.
• FireQuery – Firebug plugin for jQuery development.
• Pixel Perfect is a Firefox/Firebug extension that allows web developers and designers to easily overlay a web composition over top of the developed HTML.
• Firefinder for Firebug – Finds HTML elements matching chosen CSS selector(s) or XPath expression
• CSS Usage – Firebug extension to view which CSS rules are actually used.
• Inline Code Finder for Firebug – Inline Code Finder is an add-on to Firebug, to be able to find HTML elements.
• CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.
• FireRainbow – Javascript syntax highlighting for Firebug
• Validator – Firebug extension to validate HTML.
• Jiffy – Adds a new panel to Firebug for displaying timing measurements for JavaScript applications.

2. Greasemonkey

Greasemonkey - Firefox Add-ons for Web Developers & Designers

Greasemonkey is a Firefox extension that allows you to customize the way webpages look and function by using small bits of JavaScript.

3. Web Developer

Web Developer Firefox Add-ons

The Web Developer extension adds various web developer tools to a browser and compatible with Firefox 4

4. FireFTP

FireFTP Firefox Add-ons for Web Developers & Designers

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 many more.

5. iMacros

iMacros - Firefox Add-ons for Web Developers & Designers

iMacros was designed to automate the most repetitious tasks on the web. If there’s an activity you have to do repeatedly, just record it in iMacros. The next time you need to do it, the entire macro will run at the click of a button! With iMacros, you can quickly and easily fill out web forms, remember passwords, create a webmail notifier, download information from other sites, scrape the Web (get data from multiple sites), and more.

6. Pixlr Grabber

Pixlr Grabber - Firefox Add-ons for Web Developers & Designers

Grabbing screens (screen capture) and pulling images from the web just got a bit easier. With the Pixlr Grabber add-on, you can copy, save, share or even edit your final grabs – including any image or background – with just a right-click.

7. FoxyProxy Standard

FoxyProxy Standard - Firefox Add-ons for Web Developers & Designers

FoxyProxy is an advanced proxy management tool that completely replaces Firefox’s limited proxying capabilities. It offers more features than SwitchProxy, ProxyButton, QuickProxy, xyzproxy, ProxyTex, TorButton, etc.

8. ColorZilla

ColorZilla - Firefox Add-ons for Web Developers & Designers

Advanced Eyedropper, ColorPicker, Page Zoomer and other colorful goodies. With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and paste it into another program. You can Zoom the page you are viewing and measure distances between any two points on the page. The built-in palette browser allows choosing colors from pre-defined color sets and saving the most used colors in custom palettes. DOM spying features allow getting various information about DOM elements quickly and easily.

9. MeasureIt

MeasureIt - Firefox Add-ons for Web Developers & Designers

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

10. ShowIP

ShowIP - Firefox Add-ons for Developers

ShowIP is a Mozilla Firefox extension which shows the IP Address of the current page in the browser’s status bar and allows queries to different databases about it when you right click on it. The IP is colored red for an IPv4 address and green for an IPv6 address (hence the name).

11. FoxReplace

FoxReplace - Firefox Add-ons for Web Developers & Designers

Search and replace function for firefox, features: Reg Exp editor, undo, automatic substitutions on AJAX pages, etc.

12. JSONView

JSONView - Firefox Add-ons for Web Developers & Designers

Normally when encountering a JSON document (content type “application/json”), Firefox simply prompts you to download the file. With the JSONView extension, JSON documents are shown in the browser similar to how XML documents are shown. The document is formatted, highlighted, and arrays and objects can be collapsed. Even if the JSON document contains errors, JSONView will still show the raw text

13. User Agent Switcher

User Agent Switcher - Firefox Add-ons for Web Developers & Designers

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser. The extension is available for Firefox and will run on any platform that this browser supports including Windows, Mac OS X and Linux.

14. Font Finder

Font Finder - Firefox Add-ons for Web Developers & Designers

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

15. IE NetRenderer

IE NetRenderer - Firefox Add-ons for Web Developers & Designers

IE Netrenderer is an extension for Mozilla Firefox Web browser, giving you a quick access to the IE NetRenderer service. It enables you to get a screenshot of any webpage as it appears in the different versions of Internet Explorer.
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