10+ Awesome Firefox Extensions for Developers and Bloggers

EDIT: I’ve added Firebug and Web Developer Toolbar to this list, by popular demand.

1. FireBug - Edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
2. Web Developer Toolbar
   - Adds a menu and a toolbar with various web developer tools. I used
   this add-on for a long time prior to Firefox 2.0. I found its pixel
   measuring tool to be useful and back when I did table design I used its
   outlining/bordering tool to help me adjust that flow-based layouts.
   I’ll have to relearn how to use this sucker for the new methodologies I
   use for client-end design.
3. Seoquake
   - Seoquake is one of the most powerful tools available for analyzing
   your website’s Search Engine Optimization results. It will help you
   determine what your Google PageRank score is, how many pages on your
   site are indexed, how many external sites link to yours, similar
   statistics for Yahoo and Live.com, your Alexa ranking, your del.icio.us
   vote count (for specific pages), and mountains of other data. I’m still
   finding out more and more about this tool, but I think this is by far
   and large one of the most powerful extensions available to web
   developers.
4. ColorZilla
   - Have you ever seen a really interesting color on a website and try to
   find out what it is? ColorZilla gives you the ability to simple use a
   “color picker” to mouse over the desired color and capture it’s hex
   value. This extension has proved to a real time saver and I’ve used it
   longer than any of the other extensions or plug-ins on this list (since
   late 2004).
5. Alexa Sparky - Another traffic analysis tool, brought to you by Alexa, Amazon.com’s traffic ranking service.
   I like this plugin simply because of the trend graph that it places in
   the bottom right corner of your browser window, but it also has some
   helpful features, such as determining what sites are similar to yours.
6. Session Manager
   - I keep many tabs open on my Firefox sessions at all times, and if my
   computer has to restart or if something crashes I can lose potentially
   valuable information if I am unable to find those pages again. Session
   manager automatically saves your sessions and in the event of a crash
   or a reboot it can restore all of the tabs in the session for you.
7. IE View Lite - There are a lot of developers out there who wish Internet Explorer would either accept the W3C standards or just go away,
   but unfortunately a large portion of Internet users are Internet
   Explorer users. IE View Lite allows you to right click on any given
   page and gives you the option to view this page in a new Internet
   Explorer window. IE View Lite is a powerful tool for cross-browser
   testing and validation. I prefer using IE View over IE Tab, which runs
   Internet Explorer within a tab in Firefox, simply because IE tab has
   some quirks (i.e. it reverts back to Firefox if you press Firefox’s
   reload button while focused on an IE Tab) and you don’t get full access
   to all of IE’s options with IE Tab.
8. FireFTP
   - FireFTP is simply an FTP client built into the Firefox browser. It’s
   free, it’s simple, it’s reliable, and I can flip to FireFTP just like
   any other tab on the browser.
9. Greasemonkey
   - Greasemonkey is arguably the most powerful Firefox extension.
   Greasemonkey allows you to apply custom JavaScripts to pages within
   your browser; for instance there are scripts to declutter your Facebook
   homepage, hide Gmail lables, and hide Netflix reviews. I use
   Greasemonkey to make it easier to navigate social network sites when
   promoting my blog. You can view the directory of Greasemonkey scripts
   at Userscripts.org.
10. Download Status Bar
    - When I download Wordpress plug-ins for my blog, I usually do so in
    intervals of 3-5 plug-ins at a time. I use Download status bar to give
    me instant access to my completed downloads without having to hunt them
    down using Windows Explorer. I try to save time in every way possible.
11. StumbleUpon
    - While I don’t believe in spamming social tagging sites in everyway
    possible, I always make sure I am the first to submit my own articles
    to StumbleUpon. Why? Because
    the first StumbleUpon review is crucial to getting the correct
    demographic to view your site, since the categorization of the
    “stumble” occurs during the first review instance. It’s better that
    you, the author of the site, write the first review and categorize it
    accordingly, rather than put it in the hands of someone who may be
    viewing your site for the first time. In addition StumbleUpon sends more users to your site on average than Digg does, according to ProBlogger.
12. Extended Cookie Manager and Cache Status
    - I use the Extended Cookie Manager and the Extended Cache Manager to
    help me debug my site when I’m running into connectivity issues, such
    as the trouble I ran into with my MySQL connection bombing out in IIS.

reed more: 10 Awesome Firefox Plugins and Extensions for Developers and Bloggers

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