… as recommended by readers of Planet PHP 🙂

Most Recommendations

There were six Firefox extensions that folks repeatedly recommended …

  1. ColorZilla – advanced eyedropper, color picker, page zoomer and other colorful goodies.
  2. FireBug – live DOM & CSS inspector. The single greatest web developer add-on for Firefox.
  3. Live HTTP Headers – view HTTP headers of a page and whilst browsing.
  4. Web Developer Toolbar – adds a menu and a toolbar with various web developer tools.
  5. YSlow – Yahoo’s tool for analysing web pages and telling you why they are slow. Requires Firebug.
  6. Zend Studio Toolbar – debugging assistance for Zend Studio 5.5 and earlier. Isn’t mentioned on the Zend Studio 6 pages, so does that mean it is now obsolete?

… and after that, there was a lot of variety amongst the other extensions that were recommended.

Also Recommended

  1. Cache Status – easy cache status & management from the status bar.
  2. ChatZilla – IRC client for Firefox.
  3. Duplicate Tab – clone a tab along with its history.
  4. Edit Cookies – edit your cookies right in Firefox.
  5. Fasterfox – performance and network tweaks for Firefox.
  6. Firefox Accessibility Extension – test your web pages for functional accessibility features based on the iCITA HTML Best Practices.
  7. FirePHP – print to your Firebug console using a simple PHP function call.
  8. FireShot – take screenshots of web pages, and a whole lot more.
  9. Google Toolbar – Google’s famous in-browser search toolbar.
  10. GreaseMonkey – customise the way a web page displays using your own Javascript add-ons. See also Lifehacker’s Top 10 Greasemonkey User Scripts, and their Better GMail and Better Flickr add-ons to get an idea of just what can be done with Greasemonkey as a Firefox extension tool.
  11. HTML Validator – add HTML validation to your browser.
  12. IE Tab (Windows only) – open Firefox tabs using IE’s rendering engine. See also the popular IE View alternative.
  13. LocationBar2 – adds additional features to Firefox’s address bar.
  14. Lorem Ipsum content generator – Generate “Lorem Ipsum” dummy text, for when you need to fill a page with content for testing purposes.
  15. MeasureIt – draw out a ruler to get the pixel width and height of any element on the web page.
  16. NagiosChecker – see the status of your services and servers in Firefox’s status bar. You do monitor your servers, right? 😉
  17. PrefBar – power user toolbar for Firefox.
  18. Regular Expressions Tester – testing tool for regular expressions with colour highlighting.
  19. RefSpoof – easy spoofing of the HTTP referrer header.
  20. ReloadEvery – reloads a web page every so many seconds.
  21. Save Session – save your current browser windows & tabs for the next time you open Firefox.
  22. Scrapbook – save web pages locally and easily manage collections. (Like OS X web archives, as supported by Together, DevonThink, and so on, but cross-platform).
  23. Selenium IDE – record, edit and debug tests for Selenium, the automated UI testing tool for web developers. See also PHPUnit’s support for Selenium. You do have reproducible testing for you web apps, right? 😉
  24. Stylish – fix ugly sites, customise the look of your browser or mail client by using your own CSS files. Stylish is to CSS what Greasemonkey is to Javascript.
  25. Tab Mix Plus – tab management on steroids.
  26. Tamper Data – view and modify HTTP/HTTPS headers and POST parameters.
  27. TimestampDecode – treats the selected number as a timestamp and displays a decoded date/time.
  28. TitlebarTweaks – tweak Firefox’s titlebar text.
  29. User Agent Switcher – Adds a menu and a toolbar button to switch the user agent of the browser.
  30. Venkman – Javascript debugger for Firefox.

Stu’s Recommends

To round off the list, here are a few extensions that I find useful, but which weren’t recommended. If you haven’t heard of these before, give them a try.

  1. Flagfox – display a country flag in the status bar for the location of the current website’s server.
  2. Server Switcher – easily switch between development and production servers.
  3. Show MyIP – display your current external IP address.
  4. SQLite Manager – Manage any SQLIte database on your computer.

Are you a web developer? Got a favourite Firefox extension that isn’t on this list? Let us know in the comments below.

No Comments

  1. Johny says:
    June 16th, 2008 at 8:35 am

    Well if i install all i think my firefox will get a bit “FAT” so he might be slow and get heart attacks easily 🙂

  2. Agimat says:
    June 16th, 2008 at 1:07 pm

    True, but you can always install, disable and just enable when the need arises on a development task 🙂

  3. Agimat says:
    June 16th, 2008 at 1:07 pm

    True, but you can always install, disable and just enable when the need arises on a development task 🙂

  4. Matt says:
    June 16th, 2008 at 1:07 pm

    Great list, I’m trying them all!

  5. Matt says:
    June 16th, 2008 at 1:07 pm

    Great list, I’m trying them all!

  6. David Dashifen Kees says:
    June 16th, 2008 at 1:25 pm

    @Johny:

    I’ve got about 15 of the ones listed installed plus about 7 that aren’t and FF loads pretty well on my machine. I’ve not seen too many crashes, either.

  7. David Dashifen Kees says:
    June 16th, 2008 at 1:25 pm

    @Johny:

    I’ve got about 15 of the ones listed installed plus about 7 that aren’t and FF loads pretty well on my machine. I’ve not seen too many crashes, either.

  8. Otaku says:
    June 16th, 2008 at 2:40 pm

    I really like “Add N Edit Cookies”

  9. Otaku says:
    June 16th, 2008 at 2:40 pm

    I really like “Add N Edit Cookies”

  10. Lista di trucchetti CSS / Melodycode.com - Life is a flash says:
    June 16th, 2008 at 2:51 pm

    […] Se volete un overdose di plugin per Firefox leggetevi “40 Firefox Extensions Every Web Developer Should Check Out“, anche se poi come sappiamo tutti quelli più utili sono 5-6. PS2: Lo so, non centrava […]

  11. Lista di trucchetti CSS / Melodycode.com - Life is a flash says:
    June 16th, 2008 at 2:51 pm

    […] Se volete un overdose di plugin per Firefox leggetevi “40 Firefox Extensions Every Web Developer Should Check Out“, anche se poi come sappiamo tutti quelli più utili sono 5-6. PS2: Lo so, non centrava […]

  12. s says:
    June 16th, 2008 at 8:33 pm

    Firefox 3 comes out tomorrow, I hope many of these extensions get updated…

  13. s says:
    June 16th, 2008 at 8:33 pm

    Firefox 3 comes out tomorrow, I hope many of these extensions get updated…

  14. Brutuscat says:
    June 16th, 2008 at 8:49 pm

    Nice list! One I use a lot is Cookiepie (www.nektra.com/oss/firefox/extensions/cookiepie/), seems to be missed here!
    Is really useful to log in into multiple accounts in a same site (like Gmail, and others)
    Cheers!

  15. Brutuscat says:
    June 16th, 2008 at 8:49 pm

    Nice list! One I use a lot is Cookiepie (www.nektra.com/oss/firefox/extensions/cookiepie/), seems to be missed here!
    Is really useful to log in into multiple accounts in a same site (like Gmail, and others)
    Cheers!

  16. links for 2008-06-17 « Mandarine says:
    June 17th, 2008 at 4:35 am

    […] 40 Firefox Extensions Every Web Developer Should Check Out (tags: webdev webdesign list firefox extensions tools) […]

  17. links for 2008-06-17 « Mandarine says:
    June 17th, 2008 at 4:35 am

    […] 40 Firefox Extensions Every Web Developer Should Check Out (tags: webdev webdesign list firefox extensions tools) […]

  18. jaredmellentine says:
    June 17th, 2008 at 4:40 am

    I haven’t found a better cookie plugin than Firecookie. It’s a plugin for Firebug. https://addons.mozilla.org/en-US/firefox/addon/6683

  19. jaredmellentine says:
    June 17th, 2008 at 4:40 am

    I haven’t found a better cookie plugin than Firecookie. It’s a plugin for Firebug. https://addons.mozilla.org/en-US/firefox/addon/6683

  20. Taking (full) web page screenshots (Update) « MrGierer’s World says:
    June 17th, 2008 at 7:46 am

    […] stumbled across this extension in Stuart Herberts blog post about 40 Firefox extension for web developers, which contains many interesting extensions – some of them have been mentioned here […]

  21. Taking (full) web page screenshots (Update) « MrGierer’s World says:
    June 17th, 2008 at 7:46 am

    […] stumbled across this extension in Stuart Herberts blog post about 40 Firefox extension for web developers, which contains many interesting extensions – some of them have been mentioned here […]

  22. 40 extensions / plugins firefox à essayer. says:
    June 17th, 2008 at 9:12 am

    […] source : blog.stuartherbert.com […]

  23. 40 extensions / plugins firefox à essayer. says:
    June 17th, 2008 at 9:12 am

    […] source : blog.stuartherbert.com […]

  24. links for 2008-06-17 « copula’s weblog says:
    June 17th, 2008 at 9:33 am

    […] Stuart Herbert On PHP – » 40 Firefox Extensions Every Web Developer Should Check Out (tags: firefox extension webdev lists) […]

  25. links for 2008-06-17 « copula’s weblog says:
    June 17th, 2008 at 9:33 am

    […] Stuart Herbert On PHP – » 40 Firefox Extensions Every Web Developer Should Check Out (tags: firefox extension webdev lists) […]

  26. Fatih Hayrio?lu'nun not defteri » 19 Haziran 2008 web’den seçeme haberler » Vista, Aero, dü?melerine, dü?me, olu?turmak, Ba?lant? says:
    June 19th, 2008 at 7:52 am

    […] Web kod yazarlar? için 40 adet Firefox eklentisi. Ba?lant?  […]

  27. Fatih Hayrio?lu'nun not defteri » 19 Haziran 2008 web’den seçeme haberler » Vista, Aero, dü?melerine, dü?me, olu?turmak, Ba?lant? says:
    June 19th, 2008 at 7:52 am

    […] Web kod yazarlar? için 40 adet Firefox eklentisi. Ba?lant?  […]

  28. A Digital Notepad » Bookmarks for June 16th through June 23rd says:
    June 23rd, 2008 at 12:06 pm

    […] Stuart Herbert On PHP – 40 Firefox Extensions Every Web Developer Should Check Out. This is a great list of tools, I use many of them on a daily basis. […]

  29. A Digital Notepad » Bookmarks for June 16th through June 23rd says:
    June 23rd, 2008 at 12:06 pm

    […] Stuart Herbert On PHP – 40 Firefox Extensions Every Web Developer Should Check Out. This is a great list of tools, I use many of them on a daily basis. […]

  30. Le blog de Vincent Battaglia » En vrak - 80 says:
    July 6th, 2008 at 11:53 am

    […] 50 extensions Firefox pour le développeur Web. […]

  31. Le blog de Vincent Battaglia » En vrak - 80 says:
    July 6th, 2008 at 11:53 am

    […] 50 extensions Firefox pour le développeur Web. […]

  32. DoD Blog Sign » Blog Archive » Des listes qui peuvent servir says:
    July 31st, 2008 at 3:16 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  33. DoD Blog Sign » Blog Archive » Des listes qui peuvent servir says:
    July 31st, 2008 at 3:16 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  34. DoD Blog Sign » Blog Archive » listes says:
    July 31st, 2008 at 3:22 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  35. DoD Blog Sign » Blog Archive » listes says:
    July 31st, 2008 at 3:22 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  36. Luis says:
    November 26th, 2008 at 12:10 am

    Did anyone mention the cool Aardvark extension?
    Thumbs up for your article

  37. Luis says:
    November 26th, 2008 at 12:10 am

    Did anyone mention the cool Aardvark extension?
    Thumbs up for your article

  38. D.o.D blogsign | le signalisation du web says:
    December 18th, 2008 at 6:13 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  39. D.o.D blogsign | le signalisation du web says:
    December 18th, 2008 at 6:13 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  40. John Mac says:
    January 9th, 2009 at 1:14 am

    yeah, great article Screengrab! is another great one for anyone doing web design.

    http://www.coolbrowsers.com – this one is a good bit of fun as well.

  41. John Mac says:
    January 9th, 2009 at 1:14 am

    yeah, great article Screengrab! is another great one for anyone doing web design.

    http://www.coolbrowsers.com – this one is a good bit of fun as well.

  42. listes | DO IT * says:
    January 22nd, 2010 at 6:02 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  43. listes | DO IT * says:
    January 22nd, 2010 at 6:02 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  44. Listes | agence de communication Montpellier Agence DO IT Le Crès says:
    November 4th, 2010 at 3:00 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

  45. Listes | agence de communication Montpellier Agence DO IT Le Crès says:
    November 4th, 2010 at 3:00 pm

    […] La liste de 50 extensions firefox pour les développeurs – par stuartherbert […]

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