Firefox Developer Extensions.

January 31, 2008

Here is a list of 25 Firefox Developer Extensions that we find extremely useful at Datadial. These extensions are geared towards web development, SEO, network administration and end user marketing.

1. Firebug

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page… More

, Firefox Developer Extensions

2. Web Developer

The extension is actually a large collection of various tools for a Web master. Using Web Developer, you can get extensive information about page elements: link details, size, attributes, and colors. More

3. View Source Chart

Draws a colour-coded chart of a web page’s source code. More

, Firefox Developer Extensions


4. Total Validator 5.0

Provides true HTML validation (HTML 2.0 to XHTML 1.1) using the official DTDs, plus added attribute checking.
Also performs accessibility validation (WCAG, US-508), broken link checking, spell checking (5 languages), and takes screenshots using 25 browsers on Windows, Linux, and OS/X. More


WASP is the Web Analytics Solution Profiler, a free Firefox extension aimed at web analytics implementation specialists and web analysts who wants to do quality assurance and understand how their web analytics solution is implemented. More

6. FireShot

FireShot is a Firefox extension that creates screenshots of web pages. Unlike other extensions, this plugin provides a set of editing and annotation tools, which let users quickly modify captures and insert text and graphical annotations. Screenshots can be saved to disk (PNG, JPEG, BMP), copied to clipboard, e-mailed and sent to external editor for further processing. More

7. JSView 2.0

All browsers include a “View Source” option, but none of them offer the ability to view the source code of external files. Most websites store their javascripts and style sheets in external files and then link to them within a web page’s… More

8. Router Status

View the status of your router in the tool or status bar. More

9. Console² 0.3.9

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console… More

, Firefox Developer Extensions

10. GA? – Is Google Analytics Installed 0.6

Checks to see if Google Analytics is installed on any given page. More

11. IE View 1.3.5

Lets you load pages in IE with a single right-click, or mark certain sites to *always* load in IE. More

12. Professor X 0.4.1

The Professor X Extension let’s you see inside a page’s head without viewing the sourcecode… More

13. EditCSS 0.3.7

Stylesheet modifier in the Sidebar. More

14. SeoQuake 2.0.11

Seoquake is a Mozilla Firefox extension aimed primarily at helping web masters who deal with search engine optimization and internet promotion of web sites. Seoquake allows to obtain and investigate many important SEO parameters of the internet… More

15. 1.0.10

Create free disposable email addresses and paste them directly in forms. This helps to protect you from spam mails and could be useful when subscribing to forums or newsletters… More

16. ViewSourceWith

The main goal consists to view page source with external applications but you can also…

– open page source as DOM document, read faq
– open CSS and JS files present on page
– open images using your preferred image viewer (e.g. GIMP or ACDSee)
– open PDF links with Acrobat Reader or Foxit Reader or what you prefer
– edit textboxes content with your preferred editor and automatically see modified text on browser when you re-switch focus on it, this simplifies wiki pages editing, read faq
– open server side pages that generate the browser content, this simplifies web developer’s debug, read server-faq
– open files listed in Javascript console. When editor open file the cursor can be moved to line number shown on javascript console.

17. FireFTP 0.97.1

FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers. More

, Firefox Developer Extensions

18. KGen 0.2.1

KGen (Keyword Generator) is an extension that allows you to see what keywords are strong on visited web page. Then, you can retrieve them for social sharing (tag filling) or webmastering/SEO. More

19. Extended Copy Menu 1.4

Provides the option to copy selection as plain text or html… More

20. PageDiff 1.2

Pagediff is a simple page compare application. It helps web developers and designers to see HTML-code(text) differences between web pages… More

21. IE Tab

This is a great tool for web developers, since you can easily see how your web page displayed in IE with just one click and then switch back to Firefox. More

22. View Dependencies

View Dependencies adds a tab to the Page Info window, in which it lists all the files which were loaded to show the current page.  More

23. MeasureIt 0.3.6

Draw out a ruler to get the pixel width and height of any elements on a webpage. More

, Firefox Developer Extensions

24. Add-ons Sidebar 0.2.2

View your Add-ons in the sidebar by pressing Ctrl+Shift+E! More

25. Update Notifier

Notifies you when updates are available for your extensions and themes. Allows quick access to your extensions and themes and the ability to check both types for any updates. Easily configurable for automatically installing updates when available… More