DISQUS

Ian · 4 years ago

I don't use it personally but I know a lot of web developers use ColorZilla.

Other web dev extensions I personally use:

Inspect Element
SEOpen
Console2
IE Tab

Ian · 4 years ago

Oh, by the way, View cookies is awesome, it really ought to be integrated with Firefox core.

Bruce · 4 years ago

You missed out on the most excellent HTML Validator (based on Tidy). It's unique in that it allows you to validate your pages completely offline and integrates superbly. It's compatible with Firefox 1.5 Release Candidates.

Homepage:
http://users.skynet.be/mgueury/mozilla/

Mozilla Update page:
https://addons.mozilla.org/extensions/moreinfo....

Myk Melez · 4 years ago

This'd make a great devmo article.

Ulysses · 4 years ago

Thanks for the note about View Source With! Very useful. Been searching for an external editor xpi for my bookmarks-home-page for some time.

John Doe · 4 years ago

I don't understand the choice for EditCSS... The webdeveloper toolbar has this functionality built-in and there it actually works (very well)! Other than that, some great stuff (I use most of them already).

Andre W · 4 years ago

Rather than using EditCSS, I've been using: http://www.sitevista.com/cssvista/

It shows CSS changes on demand with both IE and FF

Daniel S · 4 years ago

re: Bruce's suggestion of the HTML Validator extension, if you're using the Web Developer Toolbar, the convenient source window (with line highlight) resulting from error links from the javascript console is *horribly* mangled. The preferences for the validator extension are non-functional on OS X (1.5), so I can't tell it to turn off validation of source windows (shouldn't that be the friggin' default?).

Not sure what's conflicting, but you can imagine how fast I uninstalled the validator. The W3C validator via the toolbar is more than sufficient for my needs.

Seth Dillingham · 4 years ago

Sure would be nice if one of the most important extensions ever written could be updated to work with Firefox 1.5: venkman! There are hacks on the net for making it work, but that shouldn't be necessary for anything as important as the javascript debugger.

Christophe Jacquet · 4 years ago

Seth, have a look here, you'll be happy:
- http://getahead.ltd.uk/ajax/venkman
- http://developer.mozilla.org/webwatch/?p=105

Christophe Jacquet · 4 years ago

LiveHTTPHeaders is a very useful tool, that enables to display, resubmit and modify HTTP requests and headers. Version 0.11 has been updated for Firefox 1.5.

See http://livehttpheaders.mozdev.org/

Seth Dillingham · 4 years ago

Christophe, in the message you were replying to, I said that I already knew about the hacks that are available to run Venkman. I have it installed on three of my machines already.

There are two problems with it, though: you can only run it once per session (if you close Venkman, you have to restart Firefox in order to open it again), and you shouldn't have to install a hacked version of a core tool like venkman.

Fvr · 4 years ago

In my opinion the extension "View formatted source" is quite superior to "View rendered source". Like the other, this extension displays the source after scripts execution, but it also re-formats the source, allows code folding and also displays in a tooltip CSS rules applied on the node

"View formatted source" extension is available here

Tim · 4 years ago

This extension is a step closer to being a development platform. There's already editable CSS - It can only be another small step to make HTML editable too. We're ready for a full IDE extension now!

Douglas Clifton · 4 years ago

I've been collecting a list of Firefox Web developer extensions for sometime myself. Thanks for turning me on to a few I wasn't aware of.

Visit: http://loadaveragezero.com/drx/extensions

nick · 4 years ago

I use Launchy (http://gemal.dk/mozilla/launchy.html) instead of View Source With.
it works the same way, but allows me to view web pages in IE/opera/etc with the same ease.