22Firefox is a huge part of what I do as a web designer (aka Pixel Pimp) and a Social Media Skank. Along the way I’ve gone through my fair share of crappy addons while keeping the ones I found most helpful.  Here’s a list of the 18 addons I’ve kept around; hopefully you can find them useful as well.

Ay shawwwty, wha’yo flava iis?

Pixeling

ColorZilla ColorZilla
This is a great addon that lets you get the colour reading of anywhere in the browser.  It also has a colour picker with several palettes built-in.

Firebug Firebug
Edit, debug, and monitor CSS, HTML, and JavaScript, live.

FireFTP FireFTP
An FTP program built into Firefox.
My favourite feature: Keep directories in sync while navigating.

IE Tab IE Tab
Open Internet Explorer-rendered web pages in Firefox and easily switch back and forth between IE/FF.

Measure It Measure It
I use it to measure the pixels of anything and everything inside the browser window.

Web Developer Toolbar Web Developer Toolbar
Several tools including working with CSS, forms, cookies, images, and more.
My favourite feature: Resize window (to 1024×768, 800×600, etc.)

FireShot FireShot
Enables you to take full page screenshots of web pages with additional functionality like editing and annotating.
My favourite feature: Full page screenshots with a customizable delay for Flash movies.

 

Social Media

Better Gmail 2 Better Gmail 2
Includes a really nice skin for Gmail with additional options.  A compilation of the best Gmail Greasemonkey scripts.
My favourite feature: Real file icons for attachments (instead of the paperclip)

Del.icio.us Bookmarks Del.icio.us Bookmarks
Allows you to open your Del.icio.us bookmarks in your sidebar or in the browser window and tag/save websites.

Download Statusbar Download Statusbar
Use your status bar to see the progress of your downloads instead of that annoying popup window.

DragDropUpload DragDropUpload
Instead of having to browse for files when uploading or attaching to an email, you can simple drag the file to the input area of the form.  The addon will automatically insert the path.

Foxmarks Bookmark Synchronizer Foxmarks Bookmark Synchronizer
This extension saves your bookmarks to a server, where you can access it from any computer that has Foxmarks installed.  Bookmarks are updated so you can take them with you anywhere you go.

Greasemonkey Greasemonkey
This addon enables you to install small bits of JavaScript (Greasemonkey scripts) to manipulate and customize page displays in Firefox.
My favourite Greasemonkey script: Pagerization.

PicLens
Hands down the coolest addon ever.  Great for viewing images, photos and video from Flickr, Google Image Search, YouTube, and more.  Just view the demo and you’ll see.

PDF Download PDF Download
Don’t you hate when links to PDF open in your browser?  Or the take forever to open and freeze your system?  PDF Download lets you choose how to open/PDFs and even gives you the option of converting it to HTML.

Shareaholic
The best addon for sharing content on the web, period.

StumbleUpon StumbleUpon
Great addon for random stumbling, sending sites to your friends and stumbling via interests or through various websites.

TwitterBar
Great addon for twittering on the down-low.  Just type your tweet in the location bar and send away.
My favourite feature: TwitterBar lets me know how many available characters I have left in my tweet.

What addons would you recommend?