Firefox Add-ons for Webmasters

If you are involved in web development, you probably already understand Firefox. There are add-ons for SEO, marketing, web design, development, FTP and more. Chances are you will find at least one of the following from this list of extensions a useful tool to make your work easier and boost productivity.

Featured Firefox Add-ons:

There are hundreds of Firefox add-ons geared towards web development, here we have waded through the numbers to find the most unique and reliable extensions you may find useful and help streamline your working processes.

Domain Research Extension Domain Lookup – Useful Firefox extension that helps you discover domain names while surfing the web. Just highlight any text you wish to check and hit the shortcut key; this extension checks the availability at your chosen registrar instantly.

So handy — a must have for domainers, but even casual domain purchasers will find the instant answers to "I wonder if ______.com is available?" addictive and useful.

Firebug ExtensionFireBug – Integrates with Firefox to put a wealth of development tools at your fingertips while you browse. Edit and debug HTML, CSS, AJAX and Javascript live.

Includes debugger, error console, command line, and a variety of fun inspectors.

Web Dev Toolbar Web Developer – Extremely powerful extension which adds a menu and toolbar to Firefox with nifty web development tools.

Features include: window resize & rulers, edit hidden form fields, disable CSS/JS and plugins, edit css and a whole bunch more. It’s the swiss-army knife of web dev — highly recommended.

User Agent Switcher User Agent Switcher – Adds a menu and toolbar button to switch the user agent of Firefox. Exciting, no?

If you are into internet marketing or SEO — this tool is perfect for browsing the web as Googlebot to see what your competitors are hiding. After installing the extension, import this list of user agents (including Googlebot).

Firefox FTPFireFTP – Adds full FTP functionality in a Firefox tab. Very rad and extremely useful. I like the convenience of simply opening an FTP client from within my browser.

Firefox proxyFoxyProxy – Most web professionals will find themselves needing a proxy solution at some point, and this is a great option for proxy surfing.

fireshotFireShot – Screen capture an entire web page and only currently visible area.

This plugin also provides a set of editing and annotation tools, which let users quickly modify screenshots and insert text and graphic annotations. Screenshots can be saved to disk, copied to the clipboard, or emailed.

Other Useful Firefox Add-ons:

More great add-ons:

IE Tab – Allows you to open Internet Explorer within a Firefox tab. Very useful.

Gspace – This extension allows you to use your Gmail Space (4.1 GB +) for file storage — acting as an online drive. Neat idea.

YSlow – Analyzes web pages and tells you why they’re slow based on Yahoo’s rules for high performance web sites. Note: Requires Firebug.

HTML Validator – Displays HTML / XHTML errors & warnings of a web page. Based on Tidy and OpenSP. Also features an automatic "clean up" option that will offer a cleaned version of your code, sans errors.

ColorZilla – Full-featured color picker with useful features and goodies.

Shareaholic – Quickly evaluate web pages popularity on social bookmarking websites — streamlines submitting content to these bookmarking websites, as well.

There are tons of other Firefox Add-ons you might find useful — you can browse the Firefox Add-ons website for more web development add-ons.

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